Manley 290935HX SBC 383 Stroker Rotating Assembly 3.750 Stroke +11cc Dome 4.035 Bore HX Bearings

The Manley 290935HX is a complete rotating assembly kit for the Small Block Chevy (SBC) 383 cubic inch stroker build. Featuring a 3.750" stroke, 4.035" bore, and +11cc dome pistons, this kit is engineered for high-compression performance applications. The HX suffix denotes that the assembly includes Clevite HX-series main bearings with an additional .001" of extra clearance for enhanced oil flow and reliability under high-performance conditions.

Kit Components & Features:

• Crankshaft: Lightweight 4340 non-twist forged steel, 3.750" stroke, 350 main journals — heat treated, stress relieved, shot peened, nitrided, and 100% magnafluxed
• Connecting Rods: 4340 forged steel H-beam, 6.000" length, with 7/16" ARP 8740 cap screws standard (ARP 2000 optional for higher HP builds)
• Pistons: 2618 forged aluminum Platinum Series, +11cc dome, 4.035" bore, with premium chromoly wrist pins
• Bearings: Clevite HX-series main bearings (.001" extra clearance) and H-series rod bearings
• Rings: High-performance piston rings included
• Horsepower Rating: 900 HP with ARP 8740 cap screws; up to 1,500 HP with optional ARP 2000 cap screws

All crankshaft and connecting rod components undergo Manley's rigorous in-house treatment process, including heat treating, stress relieving, shot peening, nitriding, and 100% magnafluxing for maximum strength and reliability. The +11cc dome piston design is ideal for high-compression builds targeting aggressive power output. This assembly is designed for standard deck Small Block Chevy blocks.

Part Number Notes: Base part number 290935 designates the SBC 383 / 3.750" stroke / +11cc dome / 4.035" bore configuration. The HX suffix specifies the inclusion of Clevite HX-series main bearings with .001" extra clearance.