Epic2112

This is probably a stupid question, but will a 351 crank drop right into a 289/302 block without any modifications?

maverick75

nope

my77stang

maybe if you ground the mains WAYYYYYYY down. we did it with a 351C crank once[8D]

67mustang302

You'd also have some major clearance issues with the bottom of the cylinder walls as well trying to get a 3.5" stroke into a 302 block, and that'd make for a pretty radical rod angle too

my77stang

like i said, we did it....a 351C crank in a real boss 302 block with real boss 302 heads. there was so much crap done to that motor (some of which i disapproved of) and in the end after it was setting the best times on the track it grenaded and trashed a super rare block and mangled one of the heads [:@]