CP Piston & Ring Set for Toyota 1NZFE - Bore (75.5mm) - Size (+0.5mm) - CR (11.5) - Set of 4

CP Pistons is well-known for making strong internal engine components, and this piston and ring set for the Toyota 1NZFE engine is a prime example of their work. If you're rebuilding the top end of your 1NZFE, whether for a performance build or a robust replacement, these pistons are built to handle the demands of a well-tuned engine. They are designed to be a +0.5mm oversize, meaning they are intended for engines where the cylinders have been bored out to 75.5mm to restore proper fit and compression.

This set features a compression ratio of 11.5:1, which is an updated figure from stock, offering a noticeable bump in performance potential when paired with appropriate tuning. The pistons themselves are forged, a process that creates a very strong and durable component capable of withstanding higher cylinder pressures and temperatures compared to cast pistons. This makes them a solid choice for engines that see spirited driving or are modified for increased output. The set includes all four pistons and their corresponding rings, ready for installation after your machine shop has prepared the cylinders.

When installing these pistons, ensure your engine builder or machine shop is aware of the +0.5mm oversize specification. Proper cylinder wall preparation and ring gap setting are critical for optimal performance and longevity, especially with a higher compression ratio. This set is designed to fit the Toyota 1NZFE engine, providing a direct replacement for the original pistons once the cylinders are machined to the correct bore size.