Speedmaster Chevy LS3 426 C.I. Forged Rotating Assembly Kit

SpecsBrand: SpeedmasterPart Number: PCE290.1159.01Part Type: Engine Rotating KitActual Engine CID: 426Bore (in): 4.065 in.Engine Stroke (in): 4.100 in.Balanced: NoPistons Included: YesPiston Rings Included: NoPiston and Ring Oversize (in): 0.000 in.Piston Material: ForgedPiston Style: Flat top, with two valve reliefsPiston Head Volume (cc): -4.00ccWrist Pin Style: Press-fit or floatingPiston Ring Facing Material: N/ACrankshaft Included: YesCrankshaft Material: ForgedRear Main Seal Style: 1-pieceEngine Balance: InternalConnecting Rods Included: YesConnecting Rod Material: 4340 Chromoly SteelConnecting Rod Beam Style: H-beam Street/StripConnecting Rod Length Center to Center (in): 6.125 in.Rod Bearings Included: NoRod Bearing Undersize (in): StockMain Bearings Included: NoCam Bearings Included: NoGaskets Included: NoQuantity: Sold as a kit.Notes: Crankshaft USA Machined to 10/10 to ensure no run out.DescriptionCrankshaftSpeedmaster forged standard weight crankshafts are designed for street or race engines with substantially increased horsepower. Speedmaster crankshafts are precision-ground, heat-treated, shot-peened, inspected and micro-polished for superior tolerance control. Speedmaster crankshafts are also nitride-hardened for superior wear resistance, have straight-shot and chamfered oil holes, and feature lightening holes in all rod throws. These crankshafts also have a large radius on all journals for improved strength and wear resistance.Connecting RodsSpeedmaster H-beam connecting rods are one of the strongest connecting rods available. Speedmaster H-beam connecting rods are perfect for supercharged and nitrous applications. These rods incorporate a special dowelled cap for specific cap-to-rod alignment and are profiled with extra clearance for stroker applications.Speedmaster H Beam Street / Strip connecting rods are manufactured from aircraft quality 4340 chromoly steel. The rods are x-rayed and ultrasonically tested with all surfaces shot peened and stress relieved.PistonsSpeedmaster Forged pistons are made from 4032 aluminum alloy for quieter operation and reduced piston to wall clearance. Up to 20% lighter than traditional forged pistons that eliminate harmful stress concentrations for superior strength. Specifically designed for naturally aspirated or moderate nitrous applications.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov