CP Piston Mitsubishi 4G63/EVO 85mm Bore 94mm Stroke 9.5:1 CR

Forged from aerospace-grade aluminum alloy, these CP Pistons are built to handle the demands of a high-performance Mitsubishi 4G63 engine. The 85mm bore and 94mm stroke dimensions are precisely machined to ensure a perfect fit within the cylinder, while the 9.5:1 compression ratio is a well-balanced choice for street or track applications, offering a good blend of power and drivability. These pistons are designed to be a direct replacement for stock, simplifying the rebuild process for your engine's top end.

CP Pistons are known for their robust construction, utilizing advanced forging techniques that create a stronger, more durable piston than cast alternatives. This strength is crucial for engines that see increased boost pressure or higher RPMs. The included wrist pins are also forged, ensuring they can withstand the significant forces generated during combustion. When rebuilding your engine, choosing pistons that can reliably handle the stress is paramount, and these CP Pistons are a solid option for that purpose.

This set includes the pistons and wrist pins. It's important to note that these pistons are not CARB approved and cannot be shipped to California. For optimal performance and longevity, always refer to the manufacturer's installation instructions and recommended assembly procedures, especially regarding ring gap and bearing clearances.