CP Piston Ford XR6 I6 4.0L - Bore 3.634in - CR 9.0:1- Set of 6

Forged from high-strength aluminum alloy, these CP Pistons are built to handle the demands of a performance-oriented Ford XR6 I6 4.0L engine. The 3.634-inch bore size is specific to this application, ensuring a precise fit for rebuilding or upgrading your engine. With a compression ratio of 9.0:1, these pistons are designed to work well with various tuning setups, offering a good balance between power and drivability for modified engines.

This set includes six pistons, all manufactured to tight tolerances for consistent performance across all cylinders. The forged construction means they are significantly stronger and more durable than cast pistons, making them a solid choice for engines that see hard use or are built for increased power output. CP Pistons is a well-known name in performance engine building, and these pistons reflect their commitment to producing reliable components for serious engine work. The -010 designation indicates these are 0.010 inches larger than standard bore size, which is common when re-boring cylinders during an engine rebuild to clean up imperfections or achieve a specific clearance.

When undertaking an engine rebuild with these pistons, it's important to ensure all supporting components are up to the task. This includes proper ring installation, bearing clearances, and cylinder wall preparation. Always refer to the manufacturer's detailed installation instructions for specific clearances and procedures to ensure optimal performance and longevity of your engine build.