Chevrolet Performance 10185034 - Big Block Flexplate

Part Number 10185034 Year of Engine 1991-up Outside Diameter 14" Crank Flange Bolt Patter 3.580" Converter Bolt Pattern 10.750" and 11.500" Starter Ring Gear Teeth 168 Technical Notes: Use with forged steel crank. Has dual-converter bolt pattern. (502 & 454 1-piece rear main seal) Chevrolet Performance offers both internally and externally balanced flywheels and flexplates. It is critical that you use the correct design for your specific engine application. Engines with one-piece crankshaft seals require externally balanced flywheels or flexplates (except for ZZ427, ZZ572/620, ZZ572/720R and the Anniversary Edition 427).