CP Ring Set for 1 Piston (3.553in) 90.25mm Bore

This is a CP Pistons ring set designed for a single piston with a 3.553-inch bore, which is equivalent to 90.25mm. Piston rings are crucial for sealing the combustion chamber, controlling oil, and transferring heat from the piston to the cylinder wall. When you're rebuilding an engine or replacing worn components, a fresh set of rings is essential for restoring proper compression and oil control.

This particular set is built to CP Pistons' standards, ensuring it meets the needs of engine builders looking for reliable components. The precise sizing is important for achieving the correct tension against the cylinder wall, which directly impacts engine performance and longevity. Proper ring seal prevents combustion gases from blowing past the piston (blow-by) and helps keep excess oil out of the combustion chamber.

Keep in mind that this part is not CARB approved and cannot be shipped to California. Always refer to your vehicle's specific service manual for detailed installation procedures and specifications.