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CP Piston & Ring Set for Subaru BRZ FA20 - Bore (86.5mm) - Size (+.5mm) - CR (10.0) - Set of 4


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CP Pistons are compatible with oversized valves and high lift camshafts. Part numbers ending in a “X” are on a X-style forging for additional strength, durability and weight reduction. The X-style has a full radius dome design, high performance rings and light weight wrist pins. CP Pistons represent the highest quality and is engineered for maximum power. Pistons can be ordered with gas ports, skirt coating, ceramic top coating, and stronger wrist pins if desired. Cometic head gaskets also are available. Standard features include: Deep valve reliefs accommodate high lift camshafts; Larger valve reliefs for +1mm valve sizes; Custom skirt cam and barrel design; Accumulator grooves; High strength aluminum forgings; High performance rings; Fully CNC machined and balanced to +/- 1 gram; Wrist pins included at no additional cost; Double pin oilers force fed from oil ring groove; Pin lock grooves for easy lock removal; Pin fitting included.

Fitment: Toyota 86 / 4U-GSE

Bore Size (mm): 86.50

Oversize (mm): +0.5

Stroke (mm): 86.0

Rod Length (mm): 129.3

Compression Height (in): 1.292

Dome / Dish CC: -11.4

Compression Ratio: 10.0

Gram Weight: 333

Piston Ring Size (mm): 1.0 x 1.2 x 2.8mm

Piston Rings (not included): CPN-3406

Cometic Head Gasket (not included): C4588-032 (RHS) / C4589-032 (LHS)

Made In: USA

Quantity: Sold as a kit.

Actual Product May Vary from Image.

This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

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