SFI 1.1 Approved Billet Steel Flywheel - 1640081

Applications: CHEV, 1970-85 SB 383-400, External Balance with 24.45 in-oz removable weight, 31 lbs, 168 Teeth

Clutch Patterns: 10", 10.5", & 10.95" B & B-Diaphragm
11" & 12" B & B-Diaphragm w/ shouldered bolt
11" Long-Diaphragm w/ 5/16" bolt holes


PRW SFI Approved Billet Steel Flywheels were awarded "Best New Product of the Year" at the Hotrod & Restoration Show 2006. and were the choice of 5 out of 6 winning engine builders Engine Masters Challenge 4 years running. PRW flywheels are CAD engineered, precision CNC machined to strict tolerances, balanced, and carefully inspected throughout the manufacturing process. The forgings are 1045 billet steel and SFI Certified.