will a cadillac 472 big block fit in a 77 grand prix motor mount

5

Asked by Nov 05, 2007 at 08:54 AM about the 1977 Pontiac Grand Prix

Question type: Car Customization

will a cadillac 472 big block fit into a 77 grand prix, motor mount wise and fit wise without having to change too much?? thank you

2 Answers

it should go in motor mounts may need moving maby som mods on trans hookup going to take some work but it can be done.

42,515

I believe you should be fine with this. The 425 engine Caddy used in '77 Cadillacs was basically a downsized 472. Again, you might need to move some motor mounts, the transmission should be able to hold the 472, as I believe both used the THM400.

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