Kit Includes: (1) Trans Adapter Flexplate GM LS Gen II to early GM 3/4 speed automatic Works with 10.75" & 11.066" (11.1") bolt-pattern torque converters SFI 29.1 certified Forged 1-piece steel ring gears 168 tooth Works with stock LS starter motor (6) Gen III LS Flexplate Bolts Fits Chevrolet Gen III/LS Series V8 Exclusive, flat, 12-point head design Has a 200,000 psi rating M11 x 1.5 (1) LS Crank Sleeve Adapter Overall Height: 1.04" Inside Diameter: 1.47" Diameter Small End: 1.70" Diameter Big End: 2.00" Material Type: Steel (1) Torque Converter Bolt Kit Under Head Length: 1.25" Thread Pitch: 7/16"-20 Wrench Type: 12 Point