[hotrodcommuter]

I have a gen 5 454 going in a 65 impala, I want to put headers on it, it has the factory exhaust manifold now, they sort of look like headers. anyway, if I do a search on summit, it gives truck headers. Will 396 headers for 65 work on this 454?

[techinspector1]

Try the 270 phone number here for Holley Tech. They make swap headers for '64 Big Block, but I don't see the '65 listed. Call 'em up or fill out the email request...
http://www.holley.com/TechService/TechRequest.asp

[techinspector1]

Please delete.

[327NUT]

Why shoot Tech, I woulda thought you have turned him on to those "Fosdick" block huggers.

[techinspector1]

Originally Posted by 327NUT

Why shoot Tech, I woulda thought you have turned him on to those "Fosdick" block huggers.

No man, they're too.....how do you say.....Fosdick!!

[454C10]

the 396 has the same bolt pattern as the 454.

are you using the gen V exhaust manifolds?. If so, those are nice.

here is a manifold link page. Which ones do you have now? Is your engine stock?

http://www.stevensparts.com/CHEV%20E...0MANIFOLDS.htm

[hotrodcommuter]

I have the ones on the left, but hey have some sort of 'flex' in the middle. I was told if I just go with these, it will give me good low end torque, but it's already a peanut port, i have 4 11 gears in a 700 r4, not sure just home low end torque I need, but the car is heavy, what do you think? go with these ones?

[454C10]

headers have more of a midrange effect on torque with stock to mild engines.

The more "non-stock" the engine is, the more headers help.

With a stock cam and peanut heads, headers will not help that much. They do sound like more hp.

[hotrodcommuter]

you sold me on staying stock

[Karcrazy]

Sorry, commented on wrong thread