Pontiac 455 4340 Forged Steel Crankshaft ST-4.25 M-3.25 RJ-2.200 RMS-2Pc Ext Speedmaster's ignition coils provide the

Speedmaster's ignition coils provide the performance needed to help keep vehicles running the way that they were designed

They start to make awesome power around 3

These high quality stacks also feature a reusable foam filter

Speedmaster aluminum LS valve covers will give your Chevrolet LS series engines a totally new look

6" axle or GM 10-Bolt

Pontiac 455 4340 Forged Steel Crankshaft ST-4.25 M-3.25 RJ-2.200 RMS-2Pc Ext Speedmaster's ignition coils provide theThese Speedmaster crankshafts are made from the same strong aircraft quality forging as standard weight cranks, but have profiled counterweights for less weight. Speedmaster lightweight crankshafts are perfect for engines wanting quicker rpm. These crankshafts feature profiled aero wing counterweights and have straight shot and chamfered oil holes. Speedmaster crankshafts are nitride hardened, with large radii on all journals for superior wear