CP Piston & Ring Set for Toyota 4AG 20V - Bore (82.0mm) - Size (+1.0mm) - CR (12.0) - Set of 4

This is a set of four forged pistons and rings from CP Pistons, specifically made for the Toyota 4AG 20V engine. These pistons are designed to be 1.0mm oversize, meaning they are intended for a block that has already been bored out to 82.0mm. With a compression ratio of 12.0:1, they are built for performance applications where increased power and responsiveness are desired.

CP Pistons are well-known in the performance engine building world. These are forged from high-strength aluminum alloy, which makes them significantly stronger and more durable than cast pistons. This strength is crucial for handling the higher cylinder pressures and temperatures found in modified or high-performance engines. The 1.0mm oversize ensures a precise fit in a freshly bored and honed cylinder, providing optimal sealing and performance. The included rings are matched to the pistons for proper fitment and sealing.

When rebuilding or modifying your 4AG 20V engine, using quality pistons like these from CP Pistons is a solid choice for reliability and performance. Remember that these pistons are 1.0mm oversize, so your engine block must be machined to match this dimension. This set includes all four pistons and their corresponding ring sets, ready for installation by a professional engine builder.