Fits Chevrolet applications 1990-up 454/502 crate engines, Center hole diameter 2.489 (1 pc rear main seal), External balance, Steel crank 41.7 oz/in balance, 168 tooth ring gear.
Fits RamClutches 1532 Fits Chevy 454/502 90-Up Ext. Bal 168 Tooth Flywheel
Fits RamClutches 2527 Fits Ford SB 28 Oz/in Balance 157 Tooth Flywheel
Fits RamClutches 1505 Fits Ford SB 28 Oz/in Balance 164 Tooth Flywheel
Fits RamClutches 1531LW Fits Chevy 86-Up Int. Balance 168 Tooth Flywheel