The rotating assembly is the foundation of any motor, and this AMC was filled with some of the best parts known to the aftermarket. A Moldex 4340 4.150-inch stroke forged crank was chosen for its obvious strength, and Wiseco 4.375-bore forged flat-tops fill all eight holes, with a 1.115-inch compression height. The Wiseco pistons utilize a lightweight .927-inch Chevy wrist pin. Any reduction in the weight of the reciprocating assembly adds to less stress and more longevity. A Speed Pro 1/16 ring pack graces the Wiseco forged slugs utilizing a .022 top gap and a .026 second ring gap. GRP 2000-series aluminum rods measuring 6.200-inches center-to-center ride on Clevite CB663HD rod bearings. The GRP rods feature radial serrations that locate the cap in all directions, ensuring perfect alignment.