CP Piston & Ring Set for Toyota 1JZGTE/2JZGTE-Bore (86.5mm)-Size (+0.5mm)-CR (9.0/10.0) - Set of 6

This is a set of six forged pistons and rings from CP Pistons, specifically made for Toyota 1JZGTE and 2JZGTE engines. These pistons are designed to be 86.5mm in bore size, which is a +0.5mm overbore from the factory specification. They feature a compression ratio of 9.0:1 to 10.0:1, depending on the cylinder head used, making them suitable for performance builds where increased displacement and compression are desired.

CP Pistons are well-known in the performance engine building community for their robust construction and attention to detail. These pistons are forged from high-strength aluminum alloys, which offers a better strength-to-weight ratio compared to cast pistons. This is crucial for engines that see high cylinder pressures and temperatures, common in turbocharged or supercharged applications like the 1JZGTE and 2JZGTE. The +0.5mm overbore size is useful when rebuilding an engine that has been previously bored or if you need to clean up cylinder walls while gaining a little extra displacement. The included rings are matched to the piston and bore size for a proper seal.

When rebuilding your 1JZ or 2JZ engine with these pistons, it's important to ensure your machine shop is aware of the specific overbore size and compression ratio targets. Proper balancing of the rotating assembly is also recommended for optimal engine longevity and performance. This set includes all six pistons and their corresponding ring sets, ready for installation by a qualified engine builder.