Mercury Zephyr 5.0L 10inch Diaphragm Year Span 1977-1978 Comments Use SF48 Clutches with SF05 Flywheel Performance Clutch Kits Product Number Torque Capacity Pricing Choose Clutch Single Stage 1 Product Number SF611 Torque Capacity 416 Pricing $394.00 Stage 2 Product Number SF612 Torque Capacity 475 Pricing $495.00 Stage 2+ Product Number SF613H Torque Capacity 533 Pricing $449.00 Stage 3 Product Number SF613 Torque Capacity 567 Pricing $395.00 Stage 3+ Product Number SF613F Torque Capacity 653 Pricing $598.00 Stage 4 Product Number SF614 Torque Capacity 567 Pricing $395.00 Stage 5 Product Number SF615 Torque Capacity 800 Pricing $568.00 None Not Available Pricing Flywheels Product Number Pricing Choose Flywheel Aluminum Product Number SF05A Pricing $429.00 Steel Product Number SF05S Pricing $349.00 None Not Available Pricing Specialty Products Billet Aluminum Flywheel Replacement Friction Plate with Fasteners (Included on Flywheel) $89 Diamond ground, includes self-locking fasteners Questions? Give us a call. 1-800-828-4379
