Quote: Ed the bad thing about the aftermarket blocks is that they are a lot heavier than a production block. Of coarse that 4.5" bore could help.
Ed is running F.A.S.T. , have they even opened up to the use of a siamese block , if not his only choice is to find an old MP P5007671 Block , all the other MP wedge blocks were crossbolted mains and I think they would be siamese bore blocks ? Ootherwise find a late 70's 440 block that is standard bore and build from there.
