Speedmaster®
Chevy SBC 350 3.75" 383ci 1Pc RMS Rotating Assembly Only (C,I 5.7,H +30)
Specs
| Brand: | Speedmaster |
| Part Number: | PCE290.1109 |
| Part Type: | Engine Rotating Kit |
| Actual Engine CID: | 383 |
| Bore (in): | 4.030 in. |
| Engine Stroke (in): | 3.750 in. |
| Balanced: | No |
| Pistons Included: | Yes |
| Piston Rings Included: | No |
| Piston and Ring Oversize (in): | 0.030 in. |
| Piston Material: | Hypereutectic aluminum |
| Piston Style: | Flat top, with four valve reliefs |
| Piston Head Volume (cc): | -4.00cc |
| Wrist Pin Style: | Press-fit |
| Piston Ring Facing Material: | Plasma-moly |
| Crankshaft Included: | Yes |
| Crankshaft Material: | Cast steel |
| Rear Main Seal Style: | 1-piece |
| Engine Balance: | External |
| Connecting Rods Included: | Yes |
| Connecting Rod Material: | 5140 Chromoly Steel |
Description
Crankshaft
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.
Connecting Rods
Speedmaster I-beam connecting rods incorporate all of the best features possible for an I-beam rod, including some strength adders found in H-beam designs. Speedmaster I-beam connecting rods are profiled with clearance for long stroke applications. These connecting rods feature a one-rib cap design for added strength and bearing support, polished beams to eliminate stress risers. Speedmaster cap screw bolts to greatly increase strength and horsepower capabilities.
Speedmaster 'I' Beam Street connecting rods are manufactured from high quality 5140 chromoly steel. The rods are x-rayed and ultrasonically tested with all surfaces shot peened and stress relieved.