4B11 2.2L STROKER KIT (I-BEAM RODS / 86.5MM BORE)

The 4B11 is the engine that powers the last of the legendary and iconic Mitsubishi Evolution series. The Evo X is widely used in circuit and street applications, and so, we have developed a 2.2L stroker kit to give this combination the increased capacity that it needs without sacrificing the ability to rev as required.

The kit consists of our Nitto/CP pistons in 86.5mm/+0.020” and 87mm/+.0.40” bore sizes. These pistons are cut from low silicon content 2618 material in CP’s Turbo HD forging. In addition to these, the pistons are complete with Nitto custom specifications, PVD rings, 9310 gudgeon pins, accumulator grooves and friction reduction grooves.

The connecting rods are our robust I-beam design. Made from double melted forged billet 4340, this connecting rod features a stout I-beam design that has proven time and again to be capable of holding considerably high power. These connecting rods come with 3/8 ARP 2000 rod bolts as standard, with the option to upgrade to Custom Age 625+.

Completing the kit is the 4340 billet crankshaft in 93mm stroke. This crankshaft has been purposely designed with strength and high power applications in mind. The crankshafts are an immaculate piece with precision manufactured knife edging to reduce weight and cut through crank case oil mist with ease. This enables the crankshaft to rev freely and easily.