1955-1985 Chevrolet Small and Big Block, 153 Tooth, 30 lb, Internal Balance MULTIPLE APPLICATIONS it flows 50 percent better

it flows 50 percent better than stock

2L was engineered to minimize air restriction and flows 51

300 degrees Fahrenheit

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1955-1985 Chevrolet Small and Big Block, 153 Tooth, 30 lb, Internal Balance MULTIPLE APPLICATIONS it flows 50 percent betterHays steel flywheels are manufactured from certified billet material that will not break up under the stress of high RPM and severe punishment of racing. This 30 pound flywheel fits the SBC, BBC with 2 piece rear main seal and has 153 tooth ring gear. The flywheel is drilled for 10. 5 in Borg & Beck or diaphragm style pressure plates. Internal engine balance. Bolts included. Other weights and applications available.