dart block

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My understanding is that it already comes clearanced for stroker cranks. I'm looking into buying one myself for a forged 331 build and the local machine shop said that they wouldn't have to touch the block to build a stroker.(as far as clearancing goes)

Rick 91GT

Mustang Master
Nov 29, 1999
You need to clearance them for the stroker. If this is a street car I highly recommend staying with the cast iron block.

Expect 500-600 in machine work inckuding balancing the rotating assembly. It should be taken to someone has done one of these blocks or atleast a Ford Racing block before.