GM Bow Tie Vortec Small Block Engine - Blue Thunder 355
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The mains are 2.300-inch (from 2.448-inch diameter main to a 2.2985-inch diameter) early-Chevy size to reduce the bearing speed with Clevite bearing spacer (MS1110HX). The crank has also undergone Accurate vacuum plasma ion treatment (the last of four heat treatments), a process that increases fatigue life 20-25 percent. View Related Article
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