Eagle Mitsubishi 4B11T 3.700in Billet Crank 5.659in H-Beam -4.5cc 86.5mm Pistons Rotating Assembly

When you're building a high-performance Mitsubishi 4B11T engine, especially for racing applications, the rotating assembly is the heart of the operation. This Eagle competition rotating assembly gives you the core components you need to build a strong foundation. It includes a 3.700-inch billet 4340 crankshaft, 5.659-inch H-beam connecting rods, and 86.5mm forged pistons designed for forced induction or nitrous use.

The crankshaft is forged from 4340 billet steel, a strong material chosen for its ability to handle extreme stress. The H-beam connecting rods are also built for high-stress environments and come equipped with 3/8-inch ARP 2000 bolts, known for their reliability under high clamping loads. The 86.5mm pistons are forged from 2618 aluminum, which offers good strength and thermal expansion properties for performance applications. They feature an inverted dome with a -4.5cc volume, designed to work with specific compression ratios. This assembly also includes plasma-moly file-fit piston rings, which allow for precise gap setting during installation, and King XP rod and main bearings for smooth operation and durability.

This rotating assembly is intended for serious competition use, including applications with nitrous or forced induction. Please note that this assembly is not CARB approved and cannot be shipped to California. It's always recommended to consult with your engine builder or refer to manufacturer instructions for proper installation and balancing procedures to ensure optimal performance and longevity.