Chevy Full Size TrucK- Gas 5.7L M15 trans Year Span 1979-1980 Performance Clutch Kits Product Number Torque Capacity Pricing Choose Clutch Single Stage 1 Product Number SC501 Torque Capacity 430 Pricing $359.00 Stage 2 Product Number SC502 Torque Capacity 560 Pricing $479.00 Stage 2+ Product Number SC503H Torque Capacity 620 Pricing $489.00 Stage 3 Product Number SC503 Torque Capacity 680 Pricing $369.00 Stage 3+ Product Number SC503F Torque Capacity 800 Pricing $599.00 Stage 4 Product Number SC504 Torque Capacity 680 Pricing $369.00 Stage 5 Product Number SC505 Torque Capacity 1200 Pricing $579.00 None Not Available Pricing Flywheels Product Number Pricing Choose Flywheel Aluminum Product Number SC86A Pricing $435.00 Steel Product Number SC86S Pricing $349.00 None Not Available Pricing Specialty Products Billet Flywheel Replacement Friction Plate Kit with Fasteners $79.00 Diamond ground, includes self-locking fasteners Questions? Give us a call. 1-800-828-4379