SKU: TOTCR0690-55
MPN: CR0690 55
The CR Piston Ring Set 4.175 Bore 1/16 1/16 3/16 is designed specifically for engine builders and mechanics engaged in high-performance cylinder work. These rings are crucial for maintaining proper gas sealing and oil control in engines that have been bored or resized to 4.175 inches. They are ideal for applications such as stroker builds, displacement increases, or repairing cylinder damage.
This ring set features a three-piece design with a 1/16-inch top compression ring, a 1/16-inch second compression ring, and a 3/16-inch oil control ring. This configuration effectively balances gas sealing with minimal friction and efficient oil scraping. The dual compression rings work together to reduce blowby and maintain optimal combustion pressure, while the oil control ring is designed to manage oil distribution within the cylinder.
These piston rings are particularly beneficial for mechanics who are reboring cast-iron or aluminum blocks to a 4.175-inch diameter. Proper installation involves honing the cylinder bore to the correct finish, measuring the ring gap accurately, and verifying piston-to-wall clearance to ensure optimal performance and longevity of the engine.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.