SB Ford 302W 351W 157T Ext Bal Cast Flywheel SBF Pioneer - FW-163

Cast iron flywheel that keeps small block Fords smooth on the street.

• ▸Suits 302W and 351W external balance applications
• ▸157-tooth ring gear pairs with standard Ford starter motors
• ▸Rotational mass smooths idle and low-speed drivability
• ▸Cast iron construction built for longevity under daily use
• ▸External balance matched correctly — no vibration compromises

Cheap flywheels skimp on ring gear hardness and casting quality. That shows up fast under repeated heat cycles. Aeroflow's cast iron unit holds its geometry and delivers consistent clutch engagement — none of the chatter you get from budget alternatives. On a street-driven small block Ford, the rotational mass is a feature, not a compromise.