Rotaing Assembly

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

• 2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins
• 4340 Forged steel H-Beam connecting rods with 3/8 ARP 8740 cap screws or optional ARP 2000 cap screws
• High Performance piston rings & high performance Clevite H Series rod bearings (narrowed)
• Lightweight 4340 forged steel crankshaft

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Reference Information

Rotating Assembly, Forged Pistons, H-beam Connecting Rods, Internal Balance, 3.543 in. Stroke, 5.933 in. Rod Length, Ford, 284, 3-valve, Kit

When it comes to building horsepower and torque, you need to start at the bottom and work your way up. Manley rotating assemblies are designed for performance enthusiasts wanting to get the most out of their engines. Their assemblies feature 4340 forged steel crankshaft and H-beam connecting rods, either 7/16 in. ARP 8740 cap screws with a 750 hp rating for LS engines/900 hp for big blocks, or optional ARP 2000 cap screws for up to 1,500 hp. They use 2618 Platinum Series forged aluminum pistons, chromoly premium wrist pins, Total Seal piston rings, and Clevite "H" Series narrowed rods and "P" or "H" Series main engine bearings. Building high-horsepower performance engines takes a lot of thought and all the right parts. Start off right with Manley rotating assemblies.