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actually, i prefer the 425 block. i was going to swap in a 455 crank, and make use of the 425 rods, with an oversize 455 pontiac piston. that way i get flat tops with a longer rod/stroke ratio. i then have a full set off .921" roller lifters, and have the tools to retrofit them to the block, after converting them to solid. i wanted the 425 crank for a 350 diesel stroker that ive been planning for awhile. however, im almost thinking of scrounging up a good 455, and just getting a hold of some 425 rods, and then just running a solid flat tappet. not sure yet, but anything you can find let me know.
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