Speedmaster®
SKU:PCE290.1161
Chevy SBC 400 3.75" 400ci 2Pc RMS Forged Rotating Assembly Only
Chevy SBC 400 3.75" 400ci 2Pc RMS Forged Rotating Assembly Only
Low stock
Couldn't load pickup availability
- Item Condition: Brand New
- Ships within 5 days
- 12-Month Limited Worldwide Warranty
Information
Specifications
| Brand: | Speedmaster |
| Part Number: | PCE290.1161 |
| Part Type: | Engine Rotating Kit |
| Actual Engine CID: | 400 |
| Engine Stroke (in): | 3.750 in. |
| Balanced: | No |
| Pistons Included: | Yes |
| Piston Rings Included: | No |
| Piston Material: | Forged aluminum |
| Piston Style: | Dished, -16cc |
| Wrist Pin Style: | Floating |
| Piston Ring Facing Material: | Plasma-moly |
| Crankshaft Included: | Yes |
| Crankshaft Material: | Forged 4340 Steel |
| Rear Main Seal Style: | 2-piece |
| Engine Balance: | Internal |
| Connecting Rods Included: | Yes |
| Connecting Rod Material: | Forged 4340 steel |
| Connecting Rod Beam Style: | H-beam |
| Connecting Rod Length Center to Center (in): | 6.125 in. |
| Rod Bearings Included: | No |
| Rod Bearing Undersize (in): | Stock |
| Main Bearings Included: | No |
| Main Bearing Undersize (in): | Stock |
| Cam Bearings Included: | No |
| Gaskets Included: | No |
| Oil Pump Included: | No |
| Camshaft Included: | No |
| Lifters Included: | No |
| Timing Chain and Gears Included: | No |
| Plastigage Included: | No |
| Assembly Lubricant Included: | No |
| Quantity: | Sold as a kit. |
Crankshaft
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.
Connecting Rods
Speedmaster H-beam connecting rods are one of the strongest connecting rods available. Speedmaster H-beam connecting rods are perfect for supercharged and nitrous applications. These rods incorporate a special doweled cap for specific cap-to-rod alignment and are profiled with extra clearance for stroker applications.
Speedmaster 'H' Beam Street / Strip connecting rods are manufactured from aircraft quality 4340 chromoly steel. The rods are x-rayed and ultrasonically tested with all surfaces shot peened and stress relieved.