Billet Aluminum Flexplate PRP’s aluminum flexplate is probably the most unique plate on the market. Each plate starts with 6061 aircraft grade aluminum and then is surface ground on both sides for precision flatness, which ensures minimal radial and lateral run out. Each plate is then machined to accept its appropriate sized replaceable steel ring gear. Plates are available in 3 sizes: 168, 153, 142, and made to work with small block and big block Chevy. All plates are 29.1 SFI certified. Chevy 153 & 142 Tooth Billet Aluminum Flexplate (Black) For 7” Aluminum A1/Cone Converter See Selection Instructions for determining which LS flexplate will work best. Please note, the LS 153 and smaller will likely need a relocated and/or special starter unless it is a specialty/custom block like CFE LS Fusion. Browse our other Transmission products here Details: Made from 6061 Billet Aluminum 29.1 SFI Certifications Available Sizes Tooth Count: 168, 153, 142 Available: Complete kit or Ring Gear Weights: PRP-9403 (168T) = 6.7lbs PRP-9401 (153T) = 5.9lbs PRP-9402 (142T) = 5.2lbs PRP-9413 (168T ring gear only) = 2.5lbs Converter Bolt Patterns: 168T SBC: 3x on 11.500″ / 3x on 10.750″ 153T SBC: 6x on 9.750″ 142T SBC: 6x on 9.750″ 168T LS: 3x on 11.500″ / 3x on 11.063″ / 3x on 10.750″ 153T LS: 6x on 10.750″ / 6x on 9.750″
