JE Pistons Acura K24/K20 89.0mm Bore 12.3:1 CR 9.0cc Dome Piston Kit (Set of 4 Pistons)

If you're building a high-performance K24 or K20 engine for your Acura, this set of four forged pistons from JE Pistons is a solid choice. These pistons are designed with an 89.0mm bore and a 12.3:1 compression ratio, featuring a 9.0cc dome volume. JE Pistons has been making performance engine components for over 75 years, and these pistons are built to handle the demands of racing and serious street use.

Crafted from 2618 aluminum right here in the USA, these pistons offer the high tensile strength needed for engines pushed to their limits. They feature JE's proprietary Forged Side Relief (FSR) design, which helps reduce friction and weight by using a narrower skirt and a shorter wrist pin. Depending on the specific application, you might also find an accumulator groove to help manage combustion pressure, leading to better ring seal and consistent power. Some applications also include a skirt coating to further cut down on friction and wear, which also helps reduce engine noise.

This kit comes complete with high-quality wrist pins, locks, and JE's Pro Seal premium piston rings, so you have the essential components ready for installation. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.