CP Pistons & Rings 86.5mm Bore 0.5mm Over for EVO X

In Stock (7)


CP Piston & Ring Set for Mitsubishi 4B11 Evo X – Bore (86.5mm) – Size (+0.5mm) – Compression Ratio (


From Drag to Endurance CP pistons have proven their quality in the racing community. These pistons for the 08-10 Evo X are avialable in 86mm stock bore, 86.5mm w/ 0.5 overbore, or 87.0mm w/ 1.0mm overbore and retain a 9.0 compression ratio. These pistons are designed for high horsepower applications and are much stronger then OEM due to the forging process CP uses. The CP pistons for the Evo X 4B11 are an excellent choice for your engine build.


High strength aluminum forging

Lightweight design

CNC machined to 1 gram

Include wrist pins

Accumulator groove included

Double pin oilers

Part Number: SC7221


SKU: SC7221

Vendor: CP Pistons

Additional information

SKU SC7221
Carb Compliance Yes
Prop 65 Unknown
EPA Approved N/A
Weight 5.10 lbs
Dimensions 11.50 × 10.40 × 4.00 in