Mini High Torque Racing Gear Reduction Starter Chevy GM v8 Big Block 2.0KW 305 350 454 3HP 153 & 168 Tooth Flywheel 3HP / 4:1 Gear Reduction Cranks up to 15:1 Compression Engines Fits most small and big block Chevy engines including 305, 350, 454 CID prior to 1999 Gen III 4 mounting holes allows starter to fit 153 or 168 tooth flywheels Compact, lightweight