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Have a 400 block 4 bolt main bored for the 1st time .60 over to be a 421 includes new splayed caps. Plumed for dry sump all machine work done by Leggett Engine Research. Also have Callies 421 crank, all new ARP fasteners, fresh 23 degree heads just need valve springs and matching intake originally from L.E.R. Call 540-869-6961 for more details
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