1972 350 Chevy Pickup Engine
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The kit features external balancing, as indicated by the brand-new 400-style scalloped harmonic damper and weighted 168-tooth flexplate. External balancing is commonly used in situations where conventional internal balancing isn't possible because the od of the crankshaft counterweights is limited by the physical dimensions of the block, or by interference problems with the pistons and cam. External balancing is also needed when the crankshaft counterweights do not have sufficient mass to offset the mass of the reciprocating and rotating components to achieve needed balance. This is a classic scenario in engines equipped with cast crankshafts like our 383, which are typically about 20 percent lighter than forged crankshafts. View Related Article
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