Join Date: Apr 2005
Location: an island near Maryland
Bronco Info: '66-'78 bunch o' Broncos...and one Filly
Because the 351m was a crude destroke of the 400, the pistons are very tall and very much an oddball design..hence are also one-of-a-kind with zero aftermarket suport for anything other than stock. What block are you trying to stick that combination of parts in to? I've built a lot of old-school strokers and such..but what you listed is not a combination I've run across yet. 351M pistons, in particular, are used only in stock 351m rebuild..and nothing else.