Steeroids Header Compatibility
The following is a list of headers that our customers have told us have or have not worked for them. Our systems are not limited to these headers by any means, but you can use them as a routing style reference for your own headers. It is the routing style that is important, not the name brand. You can look these up to see if yours have similar routing styles. Please note we have a special LS section followed by the standard Small Block section. If there is mention that a dimple may be required, look at the bottom of this page for more information about dimpling headers.
Corvette Steeroids
C2 & C3
LS Engines
-
BBK C5 Corvette 3/4 length headers with LS6 (C5 Z06 engine) in a C3 – No Problem
-
Melrose Motorsports Full Length Headers – No Problem
-
LS6 Stock Manifolds – No Problem
-
Hooker 2312HKR (block hugger style super competition) – No Problem
-
Hooker 2313HKR (block hugger style super competition) – No Problem
-
Hooker Headers Shorty 2313HKR – No Problem
-
American Racing Headers C3-68178212LS on C3 – No Problem
-
Speedhound C3 LSX Coated – No Problem
-
Stock C5 – No Problem
-
American Racing Headers – No Problem
-
OBX C5 SS Shorty – Fit With Minor Dimples
-
Melrose LSX Swap Headers – No Problem
-
Sanderson Headers – No Problem
C2 & C3
Small Block:
-
Black Jack – No Problem
-
Doug’s D334 – C3 No Problem
-
Doug’s D380 (& variants) sidemount – C3 No Problem
-
Flotech 11106FLT or 31106 FLT – Dimple May Be Required in Drivers Side
-
Hedman long tube with a 4-2-1 collector SB – Major dimple required
-
Hedman side pipes – Dimple May Be Required (350 1 5/8″ headers, small dimple on pass side)
-
Hooker 2456HKR or 2456-1HKR – No Problem
-
Hooker 2134HKR or 2134-1HKR Super Comps – No Problem
-
Hooker 2224, 2224-1 or 2234 Side Pipes- Dimple May Be Required on Drivers Side
-
Thorley Headers with L82 – No Problem
-
Walker Dynomax – No Problem
C2 & C3
Big Block:
-
Stahl 2 1/8″ fits – Dimple May Be Required
-
Stock Manifold – 454 No Problem
-
Stainless Works – 2″ Flange, 3″ Collector No Problem
-
Hedman 2″ – Dimple May Be Required
-
Hedman #68093 - No Problem
-
Hooker Side Pipes – No Problem
-
Hooker Longboy’s – Need Modification
-
Hooker Supercomps – No Problem (even with a 572 ci tall deck!)
If you currently have Steeroids and see any conflicts, or if you have any additions to this list, please email tech support so that we can update this page.
If you see a header that mentions Dimple Required, dimpling a header can be done quite easily and it can still look clean. Heat the header tube with a torch and then take a large socket and wrap it in a rag. Gently tap the socket against the header where the clearance area is required and it will leave a clean, smooth dimple without hammer marks. People have successfully done this with ceramic coated header too. BE CAREFUL NOT TO CATCH THE RAG OR ANYTHING ELSE ON FIRE! We figured that should be common sense, but that doesn’t seem to be so common anymore
C1 Corvette
Steeroids Rack & Pinion Conversions Kits for the C1 Corvette As Standard are designed to fit the OE style “Ram’s Horn” exhaust manifolds.
Steeroids kits marked as For Use With Headers are also available. The only aftermarket headers known to fit with these kits are Hooker Competition Headers Part # 2456-HKR and 2456-1HKR.
Photos 1 & 2 below show the standard kit u-joint installation with the stock style Ram’s Horn exhaust manifolds.
Photo 3 below shows the u-joint installation for the aftermarket header kit and Hooker Competition headers.
Photo 1 – Standard Setup
Photo 2 – Standard Setup
Photo 3 – With Aftermarket Headers Setup
Mustang Steeroids
We have provided some measurements below to help determine if your headers will work with our kits. On the list below, if it says that a dimple is required, we recommend you heat the header tube with a torch, then take a large socket and wrap it in a rag and gently tap a smooth dimple into the header with it. Customers have successfully done this with coated headers and not damaged the coating.
PLEASE NOTE: To date we do not know of ANY aftermarket headers that works with the 351C (though there is a manifold that works, but it is not stock). Custom or modified headers may be required. More info on the 351W listed below.
PLEASE NOTE: If you are concerned about header clearance, this may be a solution: Ron Morris Performance Adjustable Motor Mounts! These have front to back and side to side adjustment.
The following is a list of exhaust manifolds and headers that our customers have told us have (or have not) worked for them. Our systems are not limited to these headers by any means, but you can use them as a routing style reference for your own headers. It is the routing style that is important, not the name brand. You can look these up to see if yours have similar routing styles. Usually, we only hear back when a header does NOT fit – most fitment issues are on the driver’s side where the U-Joint assembly connects the column to the rack. We have provided some measurements at the bottom of the page to help determine if your headers will work with our kits. On the list below, if it says that a dimple is required, we recommend you heat the header tube with a torch, then take a large socket and wrap it in a rag and gently tap a smooth dimple into the header with it. Customers have successfully done this with coated headers and not damaged the coating.
PLEASE NOTE: To date we do not know of ANY aftermarket headers that works with the 351C (though there is a manifold that works, but it is not stock). Custom or modified headers may be required. More info on the 351W listed below.PLEASE NOTE: If you are concerned about header clearance, this may be a solution: Ron Morris Performance Adjustable Motor Mounts! These have front to back and side to side adjustment!
Small Block:
– Dart Headers with a 351 – DO NOT FIT
– Doug’s Tri-Y Headers with a 289 – Slight dimple may be required on pass side – FIT
– Doug’s Tri-Y Headers with a 302 – DO NOT FIT
– Doug’s Headers with a 351 – DO NOT FIT
– FPA (Ford Powertrain) 94 30331 Longtube with a 5.0 Conversion – DO NOT FIT
– FPA (Ford Powertrain) 9430347 Longtube with a 302 – DO NOT FIT
– (FPA NOTE: FPA claims they have headers that will work with our kit on small blocks, but we have not been able to confirm part numbers. You may be interested in checking with them at www.fordpowertrain.com)
– Hedman #88300 (Full Length) – No Problem – 289, 302, 351W – FIT***NOTE – Hedman #88300 did NOT fit with McLeod scatter shield and cable clutch on a ’70 Mustang with a 302 engine rebuilt as a 331, with RHS heads (dimple would be required).
– Hedman Shorties w/ 302 – Dimple required driver’s side – FIT
– Hedman #88400 Shorites with 289 in a ’65 – Dimple required on #6 – FIT
– Hedman #88650 3/4 length w/ 351W – FIT
– Hedman #88650 Shorties w/ 302 – FIT
– Hedman #88406W2 Shorties w/ 302 – DO NOT FIT
– Hedman #HTC 88408 Shorties w/ 289 – Dimple required driver’s side (at collector) – FIT
– Hedman #88304 Tork Step w/ a 351W – DO NOT FIT
– Hedman #88668 w/ 351W – Dimple will sometimes be required driver’s side – FIT
– Hedman Tri-Ys (older version) – Dimple required on drivers side – FIT
– HiPo Manifolds (67 Mustangs with the high performance (aka HiPo or K code) 289 engines) – DO NOT FIT
– Hooker 6208 with a 351 – DO NOT FIT
– Hooker 6133 with a 351 on 67 Coupe – DO NOT FIT
– Hooker Competition #6901 – DO NOT FIT, (but may clear with our new bracket – we have not tested it yet)
– Hooker Super Comp with a 351C – DO NOT FIT
– Hooker Super Comp #61161195 with a 351W – DO NOT FIT
– JBA 2 1/4″ with 5.0 Conversion (Full Length) – No Problem – FIT
– JBA Shorties with 302 – Most fit with no problem, but some have to dimple the header (see JBA #s below) – FIT
– JBA 1650S-2 (Shorties) with 302 – No problem with most hydraulic clutch & clutch cable setups. – FIT
– JBA 1650S (Shorties) with 302 – Dimple most likely required.
– JBA Shorties with 351W – Most no problem with clutch cable setup with smaller tube sizes – FIT
– MAC (Full Length) – No Problem – FIT
– Patriot Clipster Shorties on a 65 with a 5.0 – DO NOT FIT, but may clear with new bracket
– Sanderson Block Hugger Shorties with a 351C – No Problem, but customer had custom hoses made – FIT
– Stock Manifold – DO NOT FIT WITH EITHER 351C or 351W, but see manifold note below or Hedman note above:
– Stock Manifold D00E-9431B – No Problem with 351W in a 69 (apparently the manifold is off a 70 Fairlane) – FIT
– Stock Manifold From 71-73 351 Cleveland – No Problem with 351C (apparently if you use a manifold from 71-73 Mustangs with a 351 C it will work with our kit. We have not tried it ourselves, but a customer told us it worked for him. – FIT
Big Block:
– (1967) Tri-Y – No Problem – FIT
– (67-68) FPA (Ford Powertrain) Tri-y – No Problem with FE cars (www.fordpowertrain.com) – FIT
– (1967-68) Ford Powertrain 390 (Lock or staggered bolt, cast iron Cobra Jet) – DO NOT FIT
– (1967) Stock High Performance Manifold – DO NOT FIT
– (67-68) JBA Short Style – Dimple Required – FIT
– (69) JBA Tri-Y – Slight Driver’s Side Dimple Required, slight passenger’s bracket clearancing required – FIT (if you are willing to tweak things a little)
Click on the images below for measurements for Steeroids clearance.
Please click on the links below to see enlarged pictures of header clearance pictures and measurements. If there is a header clearance issue it is usually with the u-joint assembly, so this should be able to help you determine where that u-joint assembly will be located. The “Steeroids Engine Mount Measurement” is measured from the back of the engine mount attachment on the frame/shock tower. The center of the pinion is at about 10.19″ from that point. As you can see the rest of the rack sits between 9″ and 10.5″. Those are good numbers to use when checking clearance. Basically once you use these photos to determine where the pinion shaft on the rack will be located you can then draw a line to the steering column about 1.5″ from the fire wall. This is where the u-joint assembly will attach to the column. If there are no headers in the way, chances are the Steeroids kit will work fine with your headers.
Small Block:
-
Dart Headers with a 351 – DO NOT FIT
-
Doug’s Tri-Y Headers with a 289 – Slight dimple may be required on pass side – FIT
-
Doug’s Tri-Y Headers with a 302 – DO NOT FIT
-
Doug’s Headers with a 351 – DO NOT FIT
-
FPA (Ford Powertrain) 9430331 Longtube with a 5.0 Conversion – DO NOT FIT
-
FPA (Ford Powertrain) 9430347 Longtube with a 302 – DO NOT FIT
-
(FPA NOTE: FPA claims they have headers that will work with our kit on small blocks, but we have not been able to confirm part numbers. You may be interested in checking with them at www.fordpowertrain.com)
-
Hedman #88300 (Full Length) – No Problem – 289, 302, 351W – FIT
***NOTE – Hedman #88300 did NOT fit with McLeod scatter shield and cable clutch on a ’70 Mustang with a 302 engine rebuilt as a 331, with RHS heads (dimple would be required). -
Hedman Shorties w/ 302 – Dimple required driver’s side – FIT
-
Hedman #88400 Shorites with 289 in a ’65 – Dimple required on #6 – FIT
-
Hedman #88650 3/4 length w/ 351W – FIT
-
Hedman #88650 Shorties w/ 302 – FIT
-
Hedman #88406W2 Shorties w/ 302 – DO NOT FIT
-
Hedman #HTC 88408 Shorties w/ 289 – Dimple required driver’s side (at collector) – FIT
-
Hedman #88304 Tork Step w/ a 351W – DO NOT FIT
-
Hedman #88668 w/ 351W – Dimple will sometimes be required driver’s side – FIT
-
Hedman Tri-Ys (older version) – Dimple required on drivers side – FIT
-
HiPo Manifolds (67 Mustangs with the high performance (aka HiPo or K code) 289 engines) – DO NOT FIT
The following is a list of exhaust manifolds and headers that our customers have told us have (or have not) worked for them. Our systems are not limited to these headers by any means, but you can use them as a routing style reference for your own headers. It is the routing style that is important, not the name brand. You can look these up to see if yours have similar routing styles. Usually, we only hear back when a header does NOT fit – most fitment issues are on the driver’s side where the U-Joint assembly connects the column to the rack. We have provided some measurements at the bottom of the page to help determine if your headers will work with our kits. On the list below, if it says that a dimple is required, we recommend you heat the header tube with a torch, then take a large socket and wrap it in a rag and gently tap a smooth dimple into the header with it. Customers have successfully done this with coated headers and not damaged the coating.
PLEASE NOTE: To date we do not know of ANY aftermarket headers that works with the 351C (though there is a manifold that works, but it is not stock). Custom or modified headers may be required. More info on the 351W listed below.PLEASE NOTE: If you are concerned about header clearance, this may be a solution: Ron Morris Performance Adjustable Motor Mounts! These have front to back and side to side adjustment!
Small Block:
– Dart Headers with a 351 – DO NOT FIT
– Doug’s Tri-Y Headers with a 289 – Slight dimple may be required on pass side – FIT
– Doug’s Tri-Y Headers with a 302 – DO NOT FIT
– Doug’s Headers with a 351 – DO NOT FIT
– FPA (Ford Powertrain) 94 30331 Longtube with a 5.0 Conversion – DO NOT FIT
– FPA (Ford Powertrain) 9430347 Longtube with a 302 – DO NOT FIT
– (FPA NOTE: FPA claims they have headers that will work with our kit on small blocks, but we have not been able to confirm part numbers. You may be interested in checking with them at www.fordpowertrain.com)
– Hedman #88300 (Full Length) – No Problem – 289, 302, 351W – FIT***NOTE – Hedman #88300 did NOT fit with McLeod scatter shield and cable clutch on a ’70 Mustang with a 302 engine rebuilt as a 331, with RHS heads (dimple would be required).
– Hedman Shorties w/ 302 – Dimple required driver’s side – FIT
– Hedman #88400 Shorites with 289 in a ’65 – Dimple required on #6 – FIT
– Hedman #88650 3/4 length w/ 351W – FIT
– Hedman #88650 Shorties w/ 302 – FIT
– Hedman #88406W2 Shorties w/ 302 – DO NOT FIT
– Hedman #HTC 88408 Shorties w/ 289 – Dimple required driver’s side (at collector) – FIT
– Hedman #88304 Tork Step w/ a 351W – DO NOT FIT
– Hedman #88668 w/ 351W – Dimple will sometimes be required driver’s side – FIT
– Hedman Tri-Ys (older version) – Dimple required on drivers side – FIT
– HiPo Manifolds (67 Mustangs with the high performance (aka HiPo or K code) 289 engines) – DO NOT FIT
– Hooker 6208 with a 351 – DO NOT FIT
– Hooker 6133 with a 351 on 67 Coupe – DO NOT FIT
– Hooker Competition #6901 – DO NOT FIT, (but may clear with our new bracket – we have not tested it yet)
– Hooker Super Comp with a 351C – DO NOT FIT
– Hooker Super Comp #61161195 with a 351W – DO NOT FIT
– JBA 2 1/4″ with 5.0 Conversion (Full Length) – No Problem – FIT
– JBA Shorties with 302 – Most fit with no problem, but some have to dimple the header (see JBA #s below) – FIT
– JBA 1650S-2 (Shorties) with 302 – No problem with most hydraulic clutch & clutch cable setups. – FIT
– JBA 1650S (Shorties) with 302 – Dimple most likely required.
– JBA Shorties with 351W – Most no problem with clutch cable setup with smaller tube sizes – FIT
– MAC (Full Length) – No Problem – FIT
– Patriot Clipster Shorties on a 65 with a 5.0 – DO NOT FIT, but may clear with new bracket
– Sanderson Block Hugger Shorties with a 351C – No Problem, but customer had custom hoses made – FIT
– Stock Manifold – DO NOT FIT WITH EITHER 351C or 351W, but see manifold note below or Hedman note above:
– Stock Manifold D00E-9431B – No Problem with 351W in a 69 (apparently the manifold is off a 70 Fairlane) – FIT
– Stock Manifold From 71-73 351 Cleveland – No Problem with 351C (apparently if you use a manifold from 71-73 Mustangs with a 351 C it will work with our kit. We have not tried it ourselves, but a customer told us it worked for him. – FIT
Big Block:
– (1967) Tri-Y – No Problem – FIT
– (67-68) FPA (Ford Powertrain) Tri-y – No Problem with FE cars (www.fordpowertrain.com) – FIT
– (1967-68) Ford Powertrain 390 (Lock or staggered bolt, cast iron Cobra Jet) – DO NOT FIT
– (1967) Stock High Performance Manifold – DO NOT FIT
– (67-68) JBA Short Style – Dimple Required – FIT
– (69) JBA Tri-Y – Slight Driver’s Side Dimple Required, slight passenger’s bracket clearancing required – FIT (if you are willing to tweak things a little)
Click on the images below for measurements for Steeroids clearance.
Please click on the links below to see enlarged pictures of header clearance pictures and measurements. If there is a header clearance issue it is usually with the u-joint assembly, so this should be able to help you determine where that u-joint assembly will be located. The “Steeroids Engine Mount Measurement” is measured from the back of the engine mount attachment on the frame/shock tower. The center of the pinion is at about 10.19″ from that point. As you can see the rest of the rack sits between 9″ and 10.5″. Those are good numbers to use when checking clearance. Basically once you use these photos to determine where the pinion shaft on the rack will be located you can then draw a line to the steering column about 1.5″ from the fire wall. This is where the u-joint assembly will attach to the column. If there are no headers in the way, chances are the Steeroids kit will work fine with your headers.
-
Hooker 6208 with a 351 – DO NOT FIT
-
Hooker 6133 with a 351 on 67 Coupe – DO NOT FIT
-
Hooker Competition #6901 – DO NOT FIT , (but may clear with our new bracket – we have not tested it yet)
-
Hooker Super Comp with a 351C – DO NOT FIT
-
Hooker Super Comp #61161195 with a 351W – DO NOT FIT
-
JBA 2 1/4″ with 5.0 Conversion (Full Length) – No Problem – FIT
-
JBA Shorties with 302 – Most fit with no problem, but some have to dimple the header (see JBA #s below) – FIT
-
JBA 1650S-2 (Shorties) with 302 – No problem with most hydraulic clutch & clutch cable setups. – FIT
-
JBA 1650S (Shorties) with 302 – Dimple most likely required.
-
JBA Shorties with 351W – Most no problem with clutch cable setup with smaller tube sizes – FIT
-
MAC (Full Length) – No Problem – FIT
-
Patriot Clipster Shorties on a 65 with a 5.0 – DO NOT FIT , but may clear with new bracket
-
Sanderson Block Hugger Shorties with a 351C – No Problem, but customer had custom hoses made – FIT
-
Stock Manifold – DO NOT FIT WITH EITHER 351C or 351W, but see manifold note below or Hedman note above:
-
Stock Manifold D00E-9431B – No Problem with 351W in a 69 (apparently the manifold is off a 70 Fairlane) – FIT
-
Stock Manifold From 71-73 351 Cleveland – No Problem with 351C (apparently if you use a manifold from 71-73 Mustangs with a 351 C it will work with our kit. We have not tried it ourselves, but a customer told us it worked for him. – FIT
The following is a list of exhaust manifolds and headers that our customers have told us have (or have not) worked for them. Our systems are not limited to these headers by any means, but you can use them as a routing style reference for your own headers. It is the routing style that is important, not the name brand. You can look these up to see if yours have similar routing styles. Usually, we only hear back when a header does NOT fit – most fitment issues are on the driver’s side where the U-Joint assembly connects the column to the rack. We have provided some measurements at the bottom of the page to help determine if your headers will work with our kits. On the list below, if it says that a dimple is required, we recommend you heat the header tube with a torch, then take a large socket and wrap it in a rag and gently tap a smooth dimple into the header with it. Customers have successfully done this with coated headers and not damaged the coating.
PLEASE NOTE: To date we do not know of ANY aftermarket headers that works with the 351C (though there is a manifold that works, but it is not stock). Custom or modified headers may be required. More info on the 351W listed below.PLEASE NOTE: If you are concerned about header clearance, this may be a solution: Ron Morris Performance Adjustable Motor Mounts! These have front to back and side to side adjustment!
Small Block:
– Dart Headers with a 351 – DO NOT FIT
– Doug’s Tri-Y Headers with a 289 – Slight dimple may be required on pass side – FIT
– Doug’s Tri-Y Headers with a 302 – DO NOT FIT
– Doug’s Headers with a 351 – DO NOT FIT
– FPA (Ford Powertrain) 94 30331 Longtube with a 5.0 Conversion – DO NOT FIT
– FPA (Ford Powertrain) 9430347 Longtube with a 302 – DO NOT FIT
– (FPA NOTE: FPA claims they have headers that will work with our kit on small blocks, but we have not been able to confirm part numbers. You may be interested in checking with them at www.fordpowertrain.com)
– Hedman #88300 (Full Length) – No Problem – 289, 302, 351W – FIT***NOTE – Hedman #88300 did NOT fit with McLeod scatter shield and cable clutch on a ’70 Mustang with a 302 engine rebuilt as a 331, with RHS heads (dimple would be required).
– Hedman Shorties w/ 302 – Dimple required driver’s side – FIT
– Hedman #88400 Shorites with 289 in a ’65 – Dimple required on #6 – FIT
– Hedman #88650 3/4 length w/ 351W – FIT
– Hedman #88650 Shorties w/ 302 – FIT
– Hedman #88406W2 Shorties w/ 302 – DO NOT FIT
– Hedman #HTC 88408 Shorties w/ 289 – Dimple required driver’s side (at collector) – FIT
– Hedman #88304 Tork Step w/ a 351W – DO NOT FIT
– Hedman #88668 w/ 351W – Dimple will sometimes be required driver’s side – FIT
– Hedman Tri-Ys (older version) – Dimple required on drivers side – FIT
– HiPo Manifolds (67 Mustangs with the high performance (aka HiPo or K code) 289 engines) – DO NOT FIT
– Hooker 6208 with a 351 – DO NOT FIT
– Hooker 6133 with a 351 on 67 Coupe – DO NOT FIT
– Hooker Competition #6901 – DO NOT FIT, (but may clear with our new bracket – we have not tested it yet)
– Hooker Super Comp with a 351C – DO NOT FIT
– Hooker Super Comp #61161195 with a 351W – DO NOT FIT
– JBA 2 1/4″ with 5.0 Conversion (Full Length) – No Problem – FIT
– JBA Shorties with 302 – Most fit with no problem, but some have to dimple the header (see JBA #s below) – FIT
– JBA 1650S-2 (Shorties) with 302 – No problem with most hydraulic clutch & clutch cable setups. – FIT
– JBA 1650S (Shorties) with 302 – Dimple most likely required.
– JBA Shorties with 351W – Most no problem with clutch cable setup with smaller tube sizes – FIT
– MAC (Full Length) – No Problem – FIT
– Patriot Clipster Shorties on a 65 with a 5.0 – DO NOT FIT, but may clear with new bracket
– Sanderson Block Hugger Shorties with a 351C – No Problem, but customer had custom hoses made – FIT
– Stock Manifold – DO NOT FIT WITH EITHER 351C or 351W, but see manifold note below or Hedman note above:
– Stock Manifold D00E-9431B – No Problem with 351W in a 69 (apparently the manifold is off a 70 Fairlane) – FIT
– Stock Manifold From 71-73 351 Cleveland – No Problem with 351C (apparently if you use a manifold from 71-73 Mustangs with a 351 C it will work with our kit. We have not tried it ourselves, but a customer told us it worked for him. – FIT
Big Block:
– (1967) Tri-Y – No Problem – FIT
– (67-68) FPA (Ford Powertrain) Tri-y – No Problem with FE cars (www.fordpowertrain.com) – FIT
– (1967-68) Ford Powertrain 390 (Lock or staggered bolt, cast iron Cobra Jet) – DO NOT FIT
– (1967) Stock High Performance Manifold – DO NOT FIT
– (67-68) JBA Short Style – Dimple Required – FIT
– (69) JBA Tri-Y – Slight Driver’s Side Dimple Required, slight passenger’s bracket clearancing required – FIT (if you are willing to tweak things a little)
Click on the images below for measurements for Steeroids clearance.
Please click on the links below to see enlarged pictures of header clearance pictures and measurements. If there is a header clearance issue it is usually with the u-joint assembly, so this should be able to help you determine where that u-joint assembly will be located. The “Steeroids Engine Mount Measurement” is measured from the back of the engine mount attachment on the frame/shock tower. The center of the pinion is at about 10.19″ from that point. As you can see the rest of the rack sits between 9″ and 10.5″. Those are good numbers to use when checking clearance. Basically once you use these photos to determine where the pinion shaft on the rack will be located you can then draw a line to the steering column about 1.5″ from the fire wall. This is where the u-joint assembly will attach to the column. If there are no headers in the way, chances are the Steeroids kit will work fine with your headers.
Side Measurement
Engine Mount Measurement
Pinion Shaft Measurement
U-Joint Measurement
Big Block:
-
(1967) Tri-Y – No Problem – FIT
-
(67-68) FPA (Ford Powertrain) Tri-y – No Problem with FE cars (www.fordpowertrain.com) – FIT
-
(1967-68) Ford Powertrain 390 (Lock or staggered bolt, cast iron Cobra Jet) – DO NOT FIT
-
(1967) Stock High Performance Manifold – DO NOT FIT
-
(67-68) JBA Short Style – Dimple Required – FIT
-
(69) JBA Tri-Y – Slight Driver’s Side Dimple Required, slight passenger’s bracket clearancing required – FIT (if you are willing to tweak things a little)
The following is a list of exhaust manifolds and headers that our customers have told us have (or have not) worked for them. Our systems are not limited to these headers by any means, but you can use them as a routing style reference for your own headers. It is the routing style that is important, not the name brand. You can look these up to see if yours have similar routing styles. Usually, we only hear back when a header does NOT fit – most fitment issues are on the driver’s side where the U-Joint assembly connects the column to the rack. We have provided some measurements at the bottom of the page to help determine if your headers will work with our kits. On the list below, if it says that a dimple is required, we recommend you heat the header tube with a torch, then take a large socket and wrap it in a rag and gently tap a smooth dimple into the header with it. Customers have successfully done this with coated headers and not damaged the coating.
PLEASE NOTE: To date we do not know of ANY aftermarket headers that works with the 351C (though there is a manifold that works, but it is not stock). Custom or modified headers may be required. More info on the 351W listed below.PLEASE NOTE: If you are concerned about header clearance, this may be a solution: Ron Morris Performance Adjustable Motor Mounts! These have front to back and side to side adjustment!
Small Block:
– Dart Headers with a 351 – DO NOT FIT
– Doug’s Tri-Y Headers with a 289 – Slight dimple may be required on pass side – FIT
– Doug’s Tri-Y Headers with a 302 – DO NOT FIT
– Doug’s Headers with a 351 – DO NOT FIT
– FPA (Ford Powertrain) 94 30331 Longtube with a 5.0 Conversion – DO NOT FIT
– FPA (Ford Powertrain) 9430347 Longtube with a 302 – DO NOT FIT
– (FPA NOTE: FPA claims they have headers that will work with our kit on small blocks, but we have not been able to confirm part numbers. You may be interested in checking with them at www.fordpowertrain.com)
– Hedman #88300 (Full Length) – No Problem – 289, 302, 351W – FIT***NOTE – Hedman #88300 did NOT fit with McLeod scatter shield and cable clutch on a ’70 Mustang with a 302 engine rebuilt as a 331, with RHS heads (dimple would be required).
– Hedman Shorties w/ 302 – Dimple required driver’s side – FIT
– Hedman #88400 Shorites with 289 in a ’65 – Dimple required on #6 – FIT
– Hedman #88650 3/4 length w/ 351W – FIT
– Hedman #88650 Shorties w/ 302 – FIT
– Hedman #88406W2 Shorties w/ 302 – DO NOT FIT
– Hedman #HTC 88408 Shorties w/ 289 – Dimple required driver’s side (at collector) – FIT
– Hedman #88304 Tork Step w/ a 351W – DO NOT FIT
– Hedman #88668 w/ 351W – Dimple will sometimes be required driver’s side – FIT
– Hedman Tri-Ys (older version) – Dimple required on drivers side – FIT
– HiPo Manifolds (67 Mustangs with the high performance (aka HiPo or K code) 289 engines) – DO NOT FIT
– Hooker 6208 with a 351 – DO NOT FIT
– Hooker 6133 with a 351 on 67 Coupe – DO NOT FIT
– Hooker Competition #6901 – DO NOT FIT, (but may clear with our new bracket – we have not tested it yet)
– Hooker Super Comp with a 351C – DO NOT FIT
– Hooker Super Comp #61161195 with a 351W – DO NOT FIT
– JBA 2 1/4″ with 5.0 Conversion (Full Length) – No Problem – FIT
– JBA Shorties with 302 – Most fit with no problem, but some have to dimple the header (see JBA #s below) – FIT
– JBA 1650S-2 (Shorties) with 302 – No problem with most hydraulic clutch & clutch cable setups. – FIT
– JBA 1650S (Shorties) with 302 – Dimple most likely required.
– JBA Shorties with 351W – Most no problem with clutch cable setup with smaller tube sizes – FIT
– MAC (Full Length) – No Problem – FIT
– Patriot Clipster Shorties on a 65 with a 5.0 – DO NOT FIT, but may clear with new bracket
– Sanderson Block Hugger Shorties with a 351C – No Problem, but customer had custom hoses made – FIT
– Stock Manifold – DO NOT FIT WITH EITHER 351C or 351W, but see manifold note below or Hedman note above:
– Stock Manifold D00E-9431B – No Problem with 351W in a 69 (apparently the manifold is off a 70 Fairlane) – FIT
– Stock Manifold From 71-73 351 Cleveland – No Problem with 351C (apparently if you use a manifold from 71-73 Mustangs with a 351 C it will work with our kit. We have not tried it ourselves, but a customer told us it worked for him. – FIT
Big Block:
– (1967) Tri-Y – No Problem – FIT
– (67-68) FPA (Ford Powertrain) Tri-y – No Problem with FE cars (www.fordpowertrain.com) – FIT
– (1967-68) Ford Powertrain 390 (Lock or staggered bolt, cast iron Cobra Jet) – DO NOT FIT
– (1967) Stock High Performance Manifold – DO NOT FIT
– (67-68) JBA Short Style – Dimple Required – FIT
– (69) JBA Tri-Y – Slight Driver’s Side Dimple Required, slight passenger’s bracket clearancing required – FIT (if you are willing to tweak things a little)
Click on the images below for measurements for Steeroids clearance.
Please click on the links below to see enlarged pictures of header clearance pictures and measurements. If there is a header clearance issue it is usually with the u-joint assembly, so this should be able to help you determine where that u-joint assembly will be located. The “Steeroids Engine Mount Measurement” is measured from the back of the engine mount attachment on the frame/shock tower. The center of the pinion is at about 10.19″ from that point. As you can see the rest of the rack sits between 9″ and 10.5″. Those are good numbers to use when checking clearance. Basically once you use these photos to determine where the pinion shaft on the rack will be located you can then draw a line to the steering column about 1.5″ from the fire wall. This is where the u-joint assembly will attach to the column. If there are no headers in the way, chances are the Steeroids kit will work fine with your headers.
Click on the images above for measurements for Steeroids clearance.
Please click on the links above to see enlarged pictures of header clearance pictures and measurements. If there is a header clearance issue it is usually with the u-joint assembly, so this should be able to help you determine where that u-joint assembly will be located. The “Steeroids Engine Mount Measurement” is measured from the back of the engine mount attachment on the frame/shock tower. The center of the pinion is at about 10.19″ from that point. As you can see the rest of the rack sits between 9″ and 10.5″. Those are good numbers to use when checking clearance. Basically once you use these photos to determine where the pinion shaft on the rack will be located you can then draw a line to the steering column about 1.5″ from the fire wall. This is where the u-joint assembly will attach to the column. If there are no headers in the way, chances are the Steeroids kit will work fine with your headers.
The following is a list of exhaust manifolds and headers that our customers have told us have (or have not) worked for them. Our systems are not limited to these headers by any means, but you can use them as a routing style reference for your own headers. It is the routing style that is important, not the name brand. You can look these up to see if yours have similar routing styles. Usually, we only hear back when a header does NOT fit – most fitment issues are on the driver’s side where the U-Joint assembly connects the column to the rack. We have provided some measurements at the bottom of the page to help determine if your headers will work with our kits. On the list below, if it says that a dimple is required, we recommend you heat the header tube with a torch, then take a large socket and wrap it in a rag and gently tap a smooth dimple into the header with it. Customers have successfully done this with coated headers and not damaged the coating.
PLEASE NOTE: To date we do not know of ANY aftermarket headers that works with the 351C (though there is a manifold that works, but it is not stock). Custom or modified headers may be required. More info on the 351W listed below.PLEASE NOTE: If you are concerned about header clearance, this may be a solution: Ron Morris Performance Adjustable Motor Mounts! These have front to back and side to side adjustment!
Small Block:
– Dart Headers with a 351 – DO NOT FIT
– Doug’s Tri-Y Headers with a 289 – Slight dimple may be required on pass side – FIT
– Doug’s Tri-Y Headers with a 302 – DO NOT FIT
– Doug’s Headers with a 351 – DO NOT FIT
– FPA (Ford Powertrain) 94 30331 Longtube with a 5.0 Conversion – DO NOT FIT
– FPA (Ford Powertrain) 9430347 Longtube with a 302 – DO NOT FIT
– (FPA NOTE: FPA claims they have headers that will work with our kit on small blocks, but we have not been able to confirm part numbers. You may be interested in checking with them at www.fordpowertrain.com)
– Hedman #88300 (Full Length) – No Problem – 289, 302, 351W – FIT***NOTE – Hedman #88300 did NOT fit with McLeod scatter shield and cable clutch on a ’70 Mustang with a 302 engine rebuilt as a 331, with RHS heads (dimple would be required).
– Hedman Shorties w/ 302 – Dimple required driver’s side – FIT
– Hedman #88400 Shorites with 289 in a ’65 – Dimple required on #6 – FIT
– Hedman #88650 3/4 length w/ 351W – FIT
– Hedman #88650 Shorties w/ 302 – FIT
– Hedman #88406W2 Shorties w/ 302 – DO NOT FIT
– Hedman #HTC 88408 Shorties w/ 289 – Dimple required driver’s side (at collector) – FIT
– Hedman #88304 Tork Step w/ a 351W – DO NOT FIT
– Hedman #88668 w/ 351W – Dimple will sometimes be required driver’s side – FIT
– Hedman Tri-Ys (older version) – Dimple required on drivers side – FIT
– HiPo Manifolds (67 Mustangs with the high performance (aka HiPo or K code) 289 engines) – DO NOT FIT
– Hooker 6208 with a 351 – DO NOT FIT
– Hooker 6133 with a 351 on 67 Coupe – DO NOT FIT
– Hooker Competition #6901 – DO NOT FIT, (but may clear with our new bracket – we have not tested it yet)
– Hooker Super Comp with a 351C – DO NOT FIT
– Hooker Super Comp #61161195 with a 351W – DO NOT FIT
– JBA 2 1/4″ with 5.0 Conversion (Full Length) – No Problem – FIT
– JBA Shorties with 302 – Most fit with no problem, but some have to dimple the header (see JBA #s below) – FIT
– JBA 1650S-2 (Shorties) with 302 – No problem with most hydraulic clutch & clutch cable setups. – FIT
– JBA 1650S (Shorties) with 302 – Dimple most likely required.
– JBA Shorties with 351W – Most no problem with clutch cable setup with smaller tube sizes – FIT
– MAC (Full Length) – No Problem – FIT
– Patriot Clipster Shorties on a 65 with a 5.0 – DO NOT FIT, but may clear with new bracket
– Sanderson Block Hugger Shorties with a 351C – No Problem, but customer had custom hoses made – FIT
– Stock Manifold – DO NOT FIT WITH EITHER 351C or 351W, but see manifold note below or Hedman note above:
– Stock Manifold D00E-9431B – No Problem with 351W in a 69 (apparently the manifold is off a 70 Fairlane) – FIT
– Stock Manifold From 71-73 351 Cleveland – No Problem with 351C (apparently if you use a manifold from 71-73 Mustangs with a 351 C it will work with our kit. We have not tried it ourselves, but a customer told us it worked for him. – FIT
Big Block:
– (1967) Tri-Y – No Problem – FIT
– (67-68) FPA (Ford Powertrain) Tri-y – No Problem with FE cars (www.fordpowertrain.com) – FIT
– (1967-68) Ford Powertrain 390 (Lock or staggered bolt, cast iron Cobra Jet) – DO NOT FIT
– (1967) Stock High Performance Manifold – DO NOT FIT
– (67-68) JBA Short Style – Dimple Required – FIT
– (69) JBA Tri-Y – Slight Driver’s Side Dimple Required, slight passenger’s bracket clearancing required – FIT (if you are willing to tweak things a little)
Click on the images below for measurements for Steeroids clearance.
Please click on the links below to see enlarged pictures of header clearance pictures and measurements. If there is a header clearance issue it is usually with the u-joint assembly, so this should be able to help you determine where that u-joint assembly will be located. The “Steeroids Engine Mount Measurement” is measured from the back of the engine mount attachment on the frame/shock tower. The center of the pinion is at about 10.19″ from that point. As you can see the rest of the rack sits between 9″ and 10.5″. Those are good numbers to use when checking clearance. Basically once you use these photos to determine where the pinion shaft on the rack will be located you can then draw a line to the steering column about 1.5″ from the fire wall. This is where the u-joint assembly will attach to the column. If there are no headers in the way, chances are the Steeroids kit will work fine with your headers.
Camaro Steeroids
Camaro, Firebird & Nova Exhaust and Header Clearances
The following is a list of headers that our customers have told us have worked for them. Our systems are not limited to these headers by any means, but you can use them as a routing style reference for your own headers. It is the routing style that is important, not the name brand. You can look these up to see if yours have similar routing styles. If it says a dimple may be required, look at the bottom of this page for more info about dimpling headers.
LS Engines:
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Doug’s D-3337 Headers with LS1 – DOES NOT FIT
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Hedman # 68716 mid length – DOES NOT FIT
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POSSIBLE FIT- Doug Thorley THY-320
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POSSIBLE FIT- Hooker 70101507-3HKR
Small Block:
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Doug’s Headers with ANGLE PLUGS – DOES NOT FIT
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Doug's Headers - D569 – DOES NOT FIT
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Dynatech #740-21310 – Angle Plug AFR Heads – Fits, see image below for example
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Dynomax Shortie – Customer had clearance issue with a custom steering column…?
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Dynomax 289-86001 – No Problem
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Flotech #11100 (Full Length) – No Problem
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Hedman #68270 (Full Length) – No Problem
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Hedman #65020, 65003 – DOES NOT FIT
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Hedman #68646 Shorty 1-5/8″ Tubes 3″ Collector – Does not fit with 4 speed manual transmission, OK with automatic transmission
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Hooker Supercomp – DOES NOT FIT
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Hooker #2451-1 (Full Length) – No Problem
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Lemons Headers (see links page!) – Many sizes available, includes tall deck & angle / raised port heads – No Problem
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Patriot Clipster mid-length headers – No Problem
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Sanderson CC1 (Center Dump) – DOES NOT FIT
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Stahl – DO NOT FIT W/ 427 SB (Road race version may fit, but have not tried…)
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Stainless Works – DO NOT FIT W/ 427 SB
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Stan’s Headers #175Y (Tri-Y) – No Problem
Big Block:
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Doug’s 8313 – Dimple Required
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Doug’s D328 – No Dimple Required
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Dynatech 2 1/8″ Long Tube – Dimple Required
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Hedman routing style works best. #68190 (1 3/4″ tube w/ 3″ collector) – No Problem
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Hedman #68610 hugger/shorty, on a 1967 Camaro with 454 Big block Chevy and aluminum heads, DOES NOT FIT , steering shaft hits #2 pipe on straight just before collector
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Hooker Super Comp – DOES NOT FIT
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Hooker Competition 2″ #2457-1HKR – Dimple Required
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Hooker 2457HKR (2″ Primaries) – Customer with 69 Camaro, 540bbc, Tremec TKO600 & Raised Port Brodix Heads – Slight Dimple Required
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Hooker (?) 2 1/8” fit with dimple
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Lemons Headers – Up to 2 1/2″ primaries, no problem! Many sizes available. (Includes tall deck & raised port heads)
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Patriot Mid Length Headers – DOES NOT FIT
Want to check clearances in advance? Wondering about setups not listed above? See our Header Clearance Template.