TCI Auto 399473 - TCI Flexplates, Flexplate, 168-Tooth, External Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, Chevy, 454, Each

Before you buzz down the track at 8,000 rpm, get some peace of mind with one of these TCI SFI-approved flexplates. They're .035 in. thicker than stock to withstand the stress of high-rpm engines and high-stall converters, and also have extra welding to help retain the starter ring gear.