Aeromotive 21101 Aeromotive Billet LT1 Crank 34% Underdrive Pulley

Billet, LT1 Crank. 34% Under drive Pulley (Serpentine Belt).

34 percent Underdrive Pulley

Aeromotive Inc. is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery.

34% Underdrive Pulley; goes with GM LT-1;