Promo
Speedmaster®
Chevy BBC 454 Cast Steel Crankshaft ST-4.250 M-BBC RJ-2.2 RMS-2Pc Bal-Ext
Overview
These 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.
Specs
| Brand: | Speedmaster |
| Part Number: | PCE276.1089 |
| Part Type: | Crankshaft |
| Product Line: | Cast Nodular Iron |
| Rear Main Seal Style: | 2-piece |
| Engine Stroke (in): | 4.250 in. |
| Crankshaft Material: | Cast steel |
| Engine Balance: | External |
| Lightened: | No |
| 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 |
| Quantity: | Sold individually. |
| Notes: | Check the bearing to crank radius clearance. Rod bearings may need to be chamfered or alternatively use narrow rod bearings. |
| Tool: | Stroker Combinations |
Prop 65 Warning
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Ratings & Reviews
2 Reviews
RPM MACHINE - | 09/01/2019 10:26:00 am
Awesome Deal Thank You!
Awesome Deal Thank You!
JOSEPH FOLINO - | 02/15/2019 2:22:00 pm
Box Was Destroyed, Lucky No Damage It WasLiterally Sticking Out Of Box
Box Was Destroyed, Lucky No Damage It WasLiterally Sticking Out Of Box