Ford FE 390 427 Forged 4340 Steel Crankshaft 4.375" Std-Seal Internal Bal.
|Rear Main Seal Style:||Standard|
|Engine Stroke (in):||4.375 in.|
|Crankshaft Material:||Forged 4340 Steel|
|Requires Narrow Bearings:||No|
|Rod Bearings Included:||No|
|Main Bearings Included:||No|
|Rod Journal Diameter (in):||2.4384 in.|
|Main Journal Diameter (in):||2.7488 in.|
|Minimun Rod Length (in):||6.540 in.|
|Balancer Bolt Thread Size:||Standard|
|Crankshaft Snout Style:||Standard|
|Notes:||It is recommended that you check the bearing to crank radius clearance as well as all other clearances.|
Speedmaster forged standard weight crankshafts are designed for street or race engines with substantially increased horsepower. Speedmaster crankshafts are precision-ground, heat-treated, shot-peened, inspected, and micro-polished for superior tolerance control. Speedmaster crankshafts are also nitride-hardened for superior wear resistance, have straight-shot and chamfered oil holes, and feature lightening holes in all rod throws. These crankshafts also have a large radius on all journals for improved strength and wear resistance.