JEGS Heavy-Duty SFI 29.1 Flexplate | Fits 1970-1990 Chevy Big Block Mark IV 454 Engines | 168-Tooth | Externally Balanced | Dual Converter Bolt Pattern | For 2-Piece Rear Main Seal

Heavy-Duty SFI Flexplate1970-1990 Big Block Chevy 454 Mark IV168-ToothExternally Balanced2-Piece Rear MainDual Bolt Pattern (10.750 in. & 11.500 in.)14.130 in. Diameter x 0.140 in. ThickChromoly SteelSFI 29.1 Rated JEGS 555-601075 Heavy-Duty Flexplate for use with 1970-1990 Big Block Chevy 454 externally-balanced engine is engineered to handle extreme-duty applications and designed to take the punishment of today?s high-horsepower engines. This Flexplate is .035 in. thicker than stock and has a 29.1 SFI approval stamped into the face of the plate.FAQWhat is an SFI approved Flexplate? An SFI approved Flexplate meets safety standards set by the SFI Foundation, ensuring reliability and durability. The JEGS 601075 is SFI-certified for added performance assurance.How tight should flexplate bolts be? Flexplate bolts should be torqued to the manufacturer's specifications. Refer to your engine manual or JEGS 601075 product documentation for the recommended torque settings.t

• Fits 1970-1990 Chevy Big Block Mark IV 454 engines with 2-piece rear main seal
• SFI 29.1 RATING to meet most racing sanctioning bodies
• DUAL TORQUE CONVERTER BOLT PATTERN to fit both 10.75� and 11.5�
• MADE FROM chromoly steel for strength and long life
• SPECIFICATIONS: 168 teeth and externally balanced