Acura & Honda-Forged Custom Piston-GK5(L15B)：Bore 2.874 /2.913– Pin Size0.708-CR12.5

JA pistons are OE quality and have many premium OE features. Forged pistons have to put up with extreme pressures, as their working conditions have become significantly tougher in recent years. Naturally, the demands on pistons have also risen progressively: they must be lighter, must have lower oil consumption and must be absolutely safe and reliable.

Additonal Information:

• COMPENSATED RING GROOVES assure proper ring loading and oil control.

• EXPANSION CONTROLLED DESIGNS for small fitting clearances. With the tighter fitting clearances comes reduced engine noise, reduced wear, reduced emissions and improved oil control in the long term.
• LIGHTWEIGHT DESIGN .Lightweight piston for reduced reciprocating mass without sacrificing reliability. This reduces bearing loads, offers smoother engine running and improves engine response. The JA design can reduce piston weight by up to 15% compared to original factory parts.