Headers HELP for 351W on CRII

[mofo]

Im nearing a paint date for fiberglass and the last cutouts to cut on the body are for the headers. I prefer making the last fiberglass cuts with the headers installed for accuracy.

I have yet to find a pair of headers, or even specific pipe angle and length dimensions from someone who has a set so I can look into aftermarket options.

1. Does anyone have a set of 351W header pipes for sale?

2. Has anyone used an aftermarket set for 351W that is known to fit with the CRII chassis?

3. Anyone willing to give me 5-6 dimensions off your headers that would get me moving in the right direction?

Looking to order or have delivered by June 8 for a build weekend. Any input or leads would be greatly appreciated!

[tortuga]

Which cylinder heads? I have a complete setup from a superformance, headers and side pipes...

[MKS427]

I would contact CRII, if you haven’t already. If they can’t help try GP Headers or the vendors on Club Cobra.

[studebaker53]

If no one is willing or able to provide dimensions delay paint date. Someone elses dimensions could be different depending on motor mounts. There is a guy on the forum hopefully he replies but he had a set of headers for sale. I will look up his name.

[rbgray1]

Headers AND Sidepipes should be on hand as the turn radius of the headers AND sidepipe collectors and the engine/trans mounts will effect the position of the exit area on the lower front fender area. Since the header to sidepipe flange is inside the body, both headers and sidepipes should be dry fitted to accurately assess the exit locations.

[rbgray1]

I also run a 351W engine but wouldn't count on my dimensions not knowing what motor mounts, trans mount, sidepipes, etc you have on your CR1.

Mine is also a CR1 that I'm in final rebuild stage

[Alfa02]

@mofo, I believe the gentleman studebaker53 is talking about is 74proii. I have his phone# and can call if you like? He has been working quite a bit lately, and doesn't get on here as much as he likes. I know he has side pipes, but not sure about header's? (he installing a Coyote motor) You may send him a PM, that get's you in touch with him too? Hope this helps, Tom. Look's like everything is good with you (rbgray1) Rob. Me too.

[cycleguy55]

Originally Posted by MKS427

I would contact CRII, if you haven’t already. If they can’t help try GP Headers or the vendors on Club Cobra.

CR has been out of business for years.

[cycleguy55]

Try this:

GP Headers, Inc. offers the unique service of building custom headers to fit your application without having your car at our location. You can have a set of custom headers built to your exact header specifications using their PVC mock-up kit without your car ever leaving the garage. Imagine having a set of high end custom headers built with true merge collectors to fit for your unique application. All of their custom headers incorporate true merge collectors, heavy 3/8" flanges and are purge tig welded producing the finest custom header money can buy and built to your exact specifications. After hundreds of systems and years of experience, they have this system down to a science.









Build Your Own Custom Set Of Headers With Our Header Build Kits - Stainless Headers Mfg., Inc.

[BAD ASP]

I live in the chicago area.....
Superformance Side pipes and headers...brand new never used.....set only ....no shipping....
$800.00
Brand new ...puke tank. Chrome....$175.00

[mofo]

I connected with 74proii last fall but he never responded to my PM. I would love his number to call him, as he mentioned he may sell his headers and I have been lingering hoping I could get his contact or someone else in the market to sell.

does anyone know if Superformance headers would work for a CRII? Mine was built in 1991, so I assume its a CRII and not CRI. When was the transition?

thanks!

[mofo]

Originally Posted by rbgray1

I also run a 351W engine but wouldn't count on my dimensions not knowing what motor mounts, trans mount, sidepipes, etc you have on your CR1.

Mine is also a CR1 that I'm in final rebuild stage

I understand that a handful of factors impact the location of the sidepipe cutout
in fiberglass(engine mounts, transmount, etc). My desire for dimensions would be for the dimensions of headers that were built and sold with the CRII kit. If I had 5-6 basic dimensions for the headers to locate in 3 dimensions the mounting surface for the side pipes/collector, I could mock up and place my side pipes in place (already accounting for my trans mount and engine mount location) since my engine will be installed. I plan to use the side pipes that came with the kit, just cutout and replace the glasspacks due to everyones concern of back pressure and low power.

The only concern for this approach is actually acquiring the same set of headers, maybe from 74proii.

[mofo]

Originally Posted by cycleguy55

Try this:

GP Headers, Inc. offers the unique service of building custom headers to fit your application without having your car at our location. You can have a set of custom headers built to your exact header specifications using their PVC mock-up kit without your car ever leaving the garage. Imagine having a set of high end custom headers built with true merge collectors to fit for your unique application. All of their custom headers incorporate true merge collectors, heavy 3/8" flanges and are purge tig welded producing the finest custom header money can buy and built to your exact specifications. After hundreds of systems and years of experience, they have this system down to a science.









Build Your Own Custom Set Of Headers With Our Header Build Kits - Stainless Headers Mfg., Inc.

This looks great, but would be my last resort as I would rather not re-invent the wheel if there is a header set available out there. I will keep this in mind if I find no other options. thanks for sharing.

[Chicagowil]

I have a '90 CR1 with a 5.0 not completed yet. I can take some photos and measurements for you. Of course, the 351 exhaust location is slightly different due to the taller block (about an inch higher and 1 inch wider). I will have access the end of next week. Let me know how I can help.

[Chicagowil]

MOFO- I sent you an email related to your header problem. Please give me a call.

Thom