Hays 40-508 - Performance Flexplate

Hays 40-508 - Performance Flexplate

Hays Steel SFI Certified Flexplate - GM LS Engines

Fits 1997-2017 GM LS 4.8/5.3/6.0/6.2/7.0L - 168 Tooth - Internal Balanced - SFI

Hays SFI Approved heavy duty flexplates for are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high-stall torque converters and high-RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the 4mm thick center plate utilized on a Hays flexplate handles the brute force. These flexplates are supplied with a precision double welded ring gear and feature multiple engine and transmission bolt patterns. All Hays flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.

• SFI-approved – legal for use in racing classes that require SFI certification
• Flexplate features a precision double welded ring gear
• Has 4mm thick center plate to resist cracking near crankshaft flange
• Zinc-dichromate plated to resist corrosion
• CAD designed to provide optimum performance and reliability
• Available in Internal or External balanced versions
• Applications offered for a wide variety of engine and transmission bolt patterns