[jlm69]

So.......

1969 Firebird, full cage, STOCK front suspension, new RACK steering, FRONT Engine plate,
MID PLATE..

413 Cubic inch Original V block and heads.
Custom Cut Comp Cam... Duration @ .50" IN - 272 degrees , EX - 280 degrees
Lobe SEP = 109 degrees, GROSS LIFT- IN - .682 EXH - .667

QUESTIONS....

1) What size Primary Tubes / Collectors? (I May reuse these heads later on a larger CI engine later on).

2) Stepped Headers design???

3) FITMENT in the chassis with the front and mid-plate and rack???

4) More importantly... Who can I turn to for making them??

[turbo69bird]

Can’t speak of the mid plate and front plate but mad dog made me a nice set for my 69 bird . Basically the same as a Doug’s header back on the day. There was an interference w the upper a arm but I sent him
Pictures and I think he’s probably made the needed changes for that now. I just had to dimple mine in that area . But you hav to jack the engine up considerably to get that header out that’s for sure.
I’d say it’s either that or custom on the car

[tom s]

Pretty sure Custom will be needed to be built on the car.The only sure way to have them fit.I think Maddog got rid of the jig for V headers.They used to make them for Nunzi.Tom

[jlm69]

What do you guys think about tube and collector sizing?

[steve25]

Info for ya.

Ideally the tubes should step up in ID whenever there’s a bend of 45 degrees or more.

[jlm69]

Just heard back from S & W and they don't do headers.

Anyone know in the Pennsylvania / NJ area that may be able build custom RAV headers if I trailered the car to them???

[BB70]

Seen a thread on another site looking for a header builder. They recommended Farks Supercars in Keyport NJ. Good luck.

John

[chiefbigb]

Chris acors acors performance in doswell Virginia.

[R 70 Judge]

I thought DCI was producing headers? http://www.dcimotorsports.com/produc...ir-five-parts/

Or maybe it was McCarty racing? I swear I remember seeing a big bin full of finished RAV headers somewhere online.

[tom s]

Not sure DCI of McCarty headers will fit a factory head?Tom

[Dave Polichena]

Originally Posted by R 70 Judge

I thought DCI was producing headers? http://www.dcimotorsports.com/produc...ir-five-parts/

Or maybe it was McCarty racing? I swear I remember seeing a big bin full of finished RAV headers somewhere online.

Pretty sure that was Don that had some made

[mysticmissle]

Tubular automotive in Massachusetts

[hojs69]

I thought it was McCarty Racing.

From their website: https://lmc3470.wixsite.com/mccarty-...-crate-engines

ADD ON OPTIONS:
*street headers $999 (as shown)

[hojs69]

See Post 17 within the below chain;

http://forums.maxperformanceinc.com/...hlight=mccarty

[R 70 Judge]

Originally Posted by hojs69

See Post 17 within the below chain;

http://forums.maxperformanceinc.com/...hlight=mccarty

Yep. That’s the picture I remember seeing

[hojs69]

Those look to be stainless also, right?