14088761 - GM Performance Parts Flexplates Details

Chevy Small Block

Outside diameter is 14" for years 1986-up. Crank Flange bolt pattern: 3.00"; Converter Bolt Pattern.: 10.75", 11.50"; starter ring gear teeth: 168. For one-piece crank seal. Torque converters for TH350 and TH400 transmissions are produced with both 10.75" and 11.50" diameter converter bolt patterns. To identify the correct pattern, measure from the converter center to an attaching bolt hole and then multiply this dimension by 2.