I have an 1985 Regal 231 v6 that has 80,000 original miles on it but I wanna put a 77 regal 350 in it. Now in order to make it fit in just right, would I have to modify something?
Not much, but here is a link to a thread that explains it all. Most of the v6 stuff is compatable with the v8. http://www.v8buick.com/showthread.php?t=66510