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.
littlehorn answered 16 years ago
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.
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
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