351M WITH C6

[jreyes]

MY ENGINE JUST BROKE AND I WANT TO REPAIR IT, SO I WIIL LIKE TO KNOW WHAT KIND OF PERFORMANCE PARTS CAN I GET FOR IT OR SHOULD OTHER ENGINE FIT THE C6 IN CASE I DICIDE TO BUY ANOTHER?

[ToughOldFord]

A 400 is a bolt in replacement for the 351M and is a better motor IMO.

[fordman]

351 m 400 429 and 460 all have the same trans bolt pattern. the 420 and 460 use different engine perches and cups to moutn the engine to the stock engien crossmember. if your local come over and look at the 351m i have in the garage.

[JEF199]

I had a mag I think it was hot rod where they built a 400hp 400M for next to nothing. If I remember right it was a mild build good for a truck. Basiclly higher comp pistons and cam. Did the "M" engines have issues with rod ratio causing piston wear? ... "Bad A$$" for alittle while.