Speedmaster®
Hemi 440 Steel Billet Crankshaft 3.750 Stroke
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Product Information
Overview
Speedmaster 4340 Billet Steel crankshafts are manufactured from high quality true billet round bar stock. Their performance, strength and horsepower capabilities are significantly outstanding compared to cast forged crankshafts. An engine with a 4340 billet steel crankshaft will rev faster and cleaner due to the different harmonics produced from the high grade material. Those crankshaft are x-rayed and ultrasonically tested.
Specs
| Brand: | Speedmaster |
| Part Number: | PCE276.1005 |
| Part Type: | Crankshaft |
| Product Line: | Billet Steel |
| Rear Main Seal Style: | 2-piece |
| Engine Stroke (in): | 3.750 in. |
| Crankshaft Material: | Billet 4340 steel |
| Engine Balance: | Internal |
| Lightened: | No |
| Requires Narrow Bearings: | See notes below |
| Rod Bearings Included: | No |
| Main Bearings Included: | No |
| Rod Journal Diameter (in): | 2.375 in. |
| Main Journal Diameter (in): | 2.750 in. |
| Minimun Rod Length (in): | n/a |
| 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 |
Warranty Information
12-Month Limited Worldwide Warranty
Prop 65 Warning
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Installation Guide
Our AI assistant generates a step-by-step guide for this product — covering installation, maintenance, and troubleshooting.
This AI-generated guide is for general reference only and does not constitute official Speedmaster product documentation. Always verify fitment, torque specifications, and safety requirements before installation.