CHEVY 350 MAIN 2PC REAR SEAL STREET PERFORMANCE SERIES 9000 ROTATING ASSEMBLY BALANCED

The Scat 1-90255BI is an internally balanced rotating assembly for Small Block Chevy 350 engines, designed for mild performance engine rebuilds up to 500 horsepower. This comprehensive kit includes a Scat Series 9000 cast steel crankshaft with a 3.480 stroke, Scat 4340 I-Beam connecting rods with 3/8" cap screws and a 6.000 rod length, Icon forged dome pistons (6cc dome), piston rings, and bearings. It features a 2-piece rear main seal and offers compression ratios of 13.0:1 (with 58cc heads), 12.0:1 (with 64cc heads), and 10.3:1 (with 76cc heads). Bore size options include 4.030, 4.040, and 4.060.