71' 455 swap -- C6 Firebird Forum

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Date Posted: 00:46:08 02/24/03 Mon
Author: camilo
Subject: 71' 455 swap

i am in the process of fixing up my 68' firebird. this car is going to be made for racing and nothing else. I want to replace the 350 it has for a 71' 455 but i am not sure if it will fit. if anyone has anything to say about this or if anyone knows if it will fit please e-mail me back a.s.a.p. thanks for any response.

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Replies:

[> Re: 71' 455 swap -- Wildcat, 22:04:55 02/24/03 Mon

Yes, it will fit. All 350, 389, 400, 421, 428, and 455 pontiac engine is the same size block with identical engine mount. It will be a bolt-in, you may need to think about getting a TH400 transmission if its a automatic though.