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I looking to engine swap my 79 Trans Am. The current engine is 403 and I'm looking to swap it with a pontiac 455. I just want to know what all I would need to change out in order to swap it?
 

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Biggest things will be location of motor mounts on the frame and the shaker assembly. Olds and Pontiac were different. I’m aware that there a couple ways to tackle that but dont have the details so I can’t give you any advice there.
 
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