Allstar Performance Flexplate, Internal Balance, 2-Piece Seal, 153-Tooth, Steel, Small Block Chevy (SFI 29.1)

Flexplates transfer engine power to the transmission, include the starter ring gear and have dual (10-3/4" and 11-1/2") converter bolt patterns unless specified. SFI flexplates meet SFI 29.1 specifications including .035" thicker material than stock OE plates, starter ring gears welded on both sides and a gold zinc chromate finish. 153-Tooth flexplates measure approximately 12-7/8" in diameter. 168-Tooth flexplates measure approximately 14-1/8" in diameter.