CP Pistons SC7221 Mitsubishi EVO X Forged Piston Kit

CP Pistons SC7221 Mitsubishi EVO X Forged Piston Kit

The CP Pistons SC7221 Forged Piston Kit is designed for the Mitsubishi 4B11T EVO X engine, delivering exceptional strength and reliability for high-performance street, drag and circuit racing applications. Manufactured in the USA from premium 2618 forged aluminium, these pistons are precision CNC machined to withstand the extreme cylinder pressures and temperatures generated by turbocharged performance engines.

Featuring an 86.50 mm (+0.50 mm oversize) bore and a 9.0:1 compression ratio, the SC7221 provides an excellent combination of durability, boost response and tuning flexibility. Designed with deep valve reliefs for high-lift camshafts and oversized valves, the pistons also incorporate accumulator grooves, CP constant pressure grooves and dual forced pin oilers to maximise ring seal and wrist pin lubrication under demanding conditions.

Features

• Premium 2618 forged aluminium construction

• 86.50 mm (+0.50 mm oversize) bore

• 9.0:1 compression ratio

• Suits Mitsubishi 4B11T EVO X (2008–2015)

• 86 mm stroke

• 143.75 mm connecting rod length

• 23 mm wrist pin

• Deep valve reliefs for high-lift camshafts

• Compatible with oversized valves

• Precision CNC machined and weight matched to ±1 gram

• Accumulator groove and CP Constant Pressure Groove

• Dual forced pin oilers

• Includes high-performance piston rings, wrist pins and pin locks

• Ideal for high-boost street, drag and circuit racing builds

Manufactured to CP-Carrillo's renowned motorsport standards, the SC7221 piston kit delivers outstanding durability, precise fitment and the confidence required for serious Mitsubishi EVO X performance builds.

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