Chevy BBC 454 Cast Steel Crankshaft 4.250" 2Pc-Seal External Bal.
|Rear Main Seal Style:||2-piece|
|Engine Stroke (in):||4.250 in.|
|Crankshaft Material:||Cast steel|
|Requires Narrow Bearings:||See notes below|
|Rod Bearings Included:||No|
|Main Bearings Included:||No|
|Rod Journal Diameter (in):||2.200 in.|
|Main Journal Diameter (in):||2.749 in.|
|Minimun Rod Length (in):||6.385 in.|
|Balancer Bolt Thread Size:||Standard|
|Crankshaft Snout Style:||Standard|
|Notes:||Check the bearing to crank radius clearance. Rod bearings may need to be chamfered or alternatively use narrow rod bearings.|
Speedmaster cast crankshafts are perfect for mildly built street engines or just to replace stock crankshafts that have seen better days. These Speedmaster crankshafts are precision-ground and micro-polished to exacting tolerances.