...the 60s/70s buick 400 engines? Im considering buying a 69 buick skylark and just want to know if a pontiac 400 will fit in easily with little/no modification in place of the buick 400.
Unfortunately not, I had a big block trans am and found a 455 oldmobile and it wouldn't interchange, actually each manufaturer had difference specs, you might get it to work but not becuase they were made the same.
