Hello All
Happy new year and all that !
I was thinking of upgrading my engine. I have a 73 350 pontiac engine in my
78 firebird.
Will a pontiac trans-am 455 fit strait in or is the bell housing different ?
Thanks
Rich
350 to 455
Jan 09, 2006
14 Replies
78 firebird.
yes
Direct swap.
Must be nice to have a 455 laying around.. Someday..
-Geno
Oh, I don't know, I have a bunch of stuff laying around and it's not exactly a nice feeling thinking what to do with the shortblock 350 with the TRW dome pistons in it, or what to do with the dismantled
454, or the 63' fuelie heads with the small chambers, or the square port big block manifold I just picked up tonight for practically free, it cost me a QuadraJet I had laying around collecting dust. Or the tunnel ram set up, or the TorkerII manifold, or any number of things collecting dust on the shelf.It's just not right that I am constantly thinking about these things so I suggest that you don't collect go fast parts just to sit on the shelf. What you should do is send them up to me so they can sit on my shelves. :-) :^)
...Ron
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68'RS Camaro 88'Formula 00'GT MustangThanks Dennis
I thought it would but someone suggested to me that it might not, so I was just checking before I go out a spend my money !
Rich
Or send them to one of the groups friendly canadian posters :D
Don't forget about front suspension, linkages and motor mounts
?
What about them ? Much work / cost ?
Thanks
Rich
The front springs might have a stiffer rate on factory 455 cars. Everything else is the same. Externally a 350 & 455 Pontiac Engines are the same, some engines have a extra engine mount hole, others have to have it drilled and tapped.
Charles
On 12 Jan 2006 10:42:20 -0800, "al" puked:
Aren't Pontiac 350 and 455s dimensionally similar and weigh about the same?
-- lab~rat >:-) Do you want polite or do you want sincere?
Thanks Charles.
I suppose its like the old saying - make sure you can stop faster befor you can go faster !
Rich
Yep, as far as I know that is the case with the exception of the 301.
...Ron
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68'RS Camaro 88'Formula 00'GT MustangJoin the Discussion
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