JE Pistons Honda K24 Block w/K20A Head 87.5mm Bore 10.25:1 CR -8.1cc Piston Set (Set of 4 Pistons)

If you're building a high-performance Honda engine, especially one that combines a K24 block with a K20A head, you need pistons that can handle the stress. This set from JE Pistons is forged from 2618 aluminum, a material known for its high tensile strength, making it well-suited for demanding performance applications where durability is key. These pistons are designed with an inverted dome/dish shape to achieve a 10.25:1 compression ratio, which is a popular target for many K-series builds looking for improved power without sacrificing too much reliability.

JE Pistons has been in the game for over 75 years, and they machine these pistons 100% in the USA. They use a proprietary Forged Side Relief (FSR) design, which helps reduce friction and save weight by using a shorter wrist pin and reduced skirt width. Depending on the specific application, you might also find an accumulator groove to help reduce combustion gas pressure, leading to better ring seal and consistent power delivery. Plus, a skirt coating can further reduce friction and wear on the piston skirts and cylinder walls, which also helps quiet down the engine's operation. This kit comes complete with high-quality wrist pins, locks, and JE Pro Seal premium piston rings, so you have everything you need to get these pistons installed.

When you're pushing the limits with a K-series engine, using pistons specifically designed for the application makes a big difference. These are built for the 87.5mm bore size and are intended for use with a K24 block and K20A head combination. Remember, 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.