Manley 29520PBR Ford 4.6L 3V Balanced Rotating Assembly 3.572in Bore 3.750in Stroke -14cc Dish Pistons with Rings

The Manley 29520PBR is a complete, pre-balanced rotating assembly engineered for the Ford 4.6L 3-valve (3V) Modular engine. Featuring an extended 3.750-inch stroker crankshaft paired with 3.572-inch bore Platinum Series pistons and a -14cc dish, this kit is purpose-built for high-performance street and race builds targeting maximum displacement and power output.

Key Features:

• Lightweight 4340 forged steel crankshaft with a 3.750-inch stroke — upgrades displacement beyond the factory 4.6L configuration
• 4340 forged steel H-Beam connecting rods with 3/8" ARP 8740 cap screws (ARP 2000 cap screws available as optional upgrade)
• 2618 forged aluminum Platinum Series pistons at 3.572-inch bore with -14cc dish and premium Chrome Moly wrist pins
• High-performance piston rings included — ready for assembly right out of the box
• High-performance Clevite "H" Series rod bearings (narrowed) included
• Factory pre-balanced assembly — reduces machine shop time and ensures precise rotational balance from day one
• Unique single-fixturing ring groove and skirt machining for precise ring-to-cylinder-wall squareness and optimal sealing
• Proprietary multi-step top ring groove machining process for optimum groove geometry, flatness, and finish

The 29520PBR delivers everything needed to transform a Ford 4.6L 3V into a high-displacement performance engine. The pre-balanced configuration (PBR — Pre-Balanced with Rings) saves significant time and cost at the machine shop, making this kit an excellent choice for professional engine builders and serious enthusiasts alike.