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Car Forum / Pontiac / Pontiac Firebird / April 2007

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350 Chev or Pontiac Engine - how to tell

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Ehrbird - 18 Apr 2007 06:36 GMT
Hello ~ New to this group, New to Firebirds!  Just bought a 1978
Pontiac Firebird (Esprit) that was somewhat modified for drag racing.
I know it has a 350 engine in it and I know that wasn't the original
engine.  But how do I tell if it is a Pontiac or a Chevy engine?
Also, does anyone know of a place to buy "original" or replacement
parts such as the speedometer that doesn't work?
Thank you!
Sean
JimV - 19 Apr 2007 02:23 GMT
> Hello ~ New to this group, New to Firebirds!  Just bought a 1978
> Pontiac Firebird (Esprit) that was somewhat modified for drag racing.
[quoted text clipped - 4 lines]
> Thank you!
> Sean

A Pontiac V8 will have a space under the intake manifold with a cover
underneath. While a Chevy will be all one piece. Lots of parts show-up
on ebay.
Gary-KQ6RT - 19 Apr 2007 05:40 GMT
On a '78 it could also be an Oldsmobile 350. My cousin had one with an Olds.

>> Hello ~ New to this group, New to Firebirds!  Just bought a 1978
>> Pontiac Firebird (Esprit) that was somewhat modified for drag racing.
[quoted text clipped - 8 lines]
> underneath. While a Chevy will be all one piece. Lots of parts show-up on
> ebay.
Jasper - 23 Apr 2007 01:16 GMT
A Pontiac has part of the exhaust manifolds formed into the heads, and the
manifolds bolt to these extensions.  On a Chevy engine, the manifolds bolt
on the flat sides of the heads.

> Hello ~ New to this group, New to Firebirds!  Just bought a 1978
> Pontiac Firebird (Esprit) that was somewhat modified for drag racing.
[quoted text clipped - 4 lines]
> Thank you!
> Sean
 
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