Manley Engine Rotating Kits 290830HX Kits, KIT-SBC 355 3.480/4.030

SKU: MAN290830HX

Engine Rotating Kits

Manley Performance

Manley Engine Rotating Kits 290830HX Kits, KIT-SBC 355 3.480/4.030

SKU: MAN290830HX

Engine Rotating Kits

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Manley Rotating Assemblies are engineered as complete, matched systems to deliver maximum strength, balance, and performance in high-demand engines. Featuring precision-forged crankshafts, high-strength connecting rods, and premium pistons, each component is designed to work together seamlessly for optimal durability and efficiency. Tight tolerances and careful material selection ensure excellent load handling, reduced friction, and consistent performance under extreme RPM and cylinder pressure. By combining Manley’s proven rod, piston, and crank technologies into a unified package, these assemblies provide the reliability and confidence engine builders demand when pushing the limits of power.

Part Type

Engine Crankshaft Rotating Assembly

Data: v4.2 - Upd: 2026-10-14 10:08:49

Features

2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins
Horsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws
Lightweight 4340 forged steel crankshaft
Supplied with our Pro Series Lightweight I-Beam connecting rods with 7/16 ARP 2000 cap screws