Science Friction Flywheels
Solid Billet Construction
SFI Quality At Affordable Prices
Wide Range Of Common and Not So Common Application
Weight Balanced To Your Crank Specs
Compatible With Popular Clutches
CNC Milled, Assembled and Balanced In The USA
Custom And One-Off Wheels Available On Request
American Powertrain’s Science Friction SFI quality billet flywheels fit just about every GM, Ford, Mopar and AMC V8 ever built. Billet steel or lightened billet steel works best on the street for smooth performance and drag racing where the flywheel stores energy for hard launches. Billet aluminum is preferred for quick rpm gain in road racing and for high revving engines.