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At the foundation of the beast are four-bolt mains. You'll notice that main caps No. 2 through No. 4 are splayed for better clamping force. The rotating assembly features a cast steel 3.480-inch crankshaft and forged 4340 I-beam rods with 3/8-inch cap screws. Clevite bearings reside throughout the short-block, with Hastings Moly rings surrounding each piston.