Dart Special High Performance Blocks

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Why waste time sourcing, cleaning, machining, and prepping an old core in hopes it'll be usable when you could be guaranteed a new quality block without the expense of a full-race unit? Dart Special High Performance Blocks enable you to affordably build a powerful and durable engine.
FeaturesDesigned for compatibility with stock componentsVirtually ready to assemble right out of the box after a final cylinder honePrecision machined from high-nickel cast ironDecks even and parallel within .002"Siamese bores 4.000" OR 4.125" (unfinished)Cylinder walls .230" minimum at 4.165"Clearance for 3.75" stroke using steel rodsPriority main oiling system2-piece rear main seal350 main journalsSplayed 4-bolt center three main capsBlind head bolt holesOE bolt holes for starter, clutch ball, etc.Uses stock stamped steel or plastic timing coverProvisions for stock roller lifters and camsMade in the USA
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