Hays heavy-duty flexplates for high performance and competition engines are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high-stall torque converters and today's high-RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the thicker Hays Flexplate handles the force. These H.D. flexplates fit 904, 999, and 727 Torqueflite transmissions. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.

Features

Internally balanced flexplate is SFI 29.1 Certified

Designed to work with 3/8" or 7/16" torque converter bolts

Fits both 10" and 11-1/8" torque converter bolt patterns

Features Zinc Dichromate Plated finish for superior corrosion resistance and good looks

Heavy-Duty design utilized thicker than stock steel plate enabling to withstand the stress of high-stall converters and high-RPM engines

For 6-bolt crankshafts with 2-piece rear main seal