CP Piston & Ring Set Honda K24 w/K20A/A2 - Bore 87mm - STD Size - Compression Height 30mm

This is a set of four forged pistons and rings from CP Pistons, specifically made for Honda K24 engines that are also running K20A or K20A2 cylinder heads. These pistons are designed to fit an 87mm bore, which is the standard size for many K24 builds, and they have a compression height of 30mm. CP Pistons are well-known in the performance engine building world for their robust construction and precision manufacturing, making them a solid choice when you're looking to build a high-performance or race-spec engine.

Forged pistons like these are significantly stronger than cast pistons. They start as a solid block of aluminum alloy that's heated and hammered into shape under extreme pressure. This process creates a denser, more uniform grain structure that can withstand higher cylinder pressures and temperatures, which is crucial for boosted applications or high-revving naturally aspirated builds. The 87mm bore size is common for K24 engines, and the 30mm compression height is important for achieving the correct piston-to-valve clearance and desired compression ratio when paired with the K20A/A2 heads. This set includes the necessary rings to complete the piston assembly.

When building a K-series engine with these pistons, it's important to ensure your connecting rods and crankshaft are also suitable for the intended power output. Proper engine balancing and clearancing are critical for reliability, especially with forged components. Always refer to CP Pistons' installation guidelines for specific details on piston-to-wall clearance and ring gap settings to ensure optimal performance and longevity.