SFI Approved Flexplate works with Chevy 454/502 generation V and generation VI, 1991-97, 1 piece rear seal, 14.13 inch outside diameter, 168 teeth, .187 inches thick core. Built in high integrity design with 7/16 inches TC bolts, includes late model 6 bolt convertor pattern external balance. Will fit the 6 bolt 4L80E and 4-L85 converter.