GP Piston Ring Set 4.155 Bore 1/16 1/16 3/16

The GP Piston Ring Set 4.155 Bore 1/16 1/16 3/16 by TOTAL SEAL is the go-to choice for engine builders and performance mechanics rebuilding small-block and mid-displacement engines with precision bore sizes. Whether you're restoring a classic hot rod, assembling a fresh long-block for racing, or performing a complete engine overhaul, this ring set delivers the compression sealing and blow-by control that separates a tight, efficient engine from one that leaks power and oil. TOTAL SEAL has engineered these rings to meet OEM and performance standards, making them suitable for both street and competition applications where reliability matters.

The 1/16, 1/16, and 3/16-inch ring thickness configuration is engineered to manage compression, wiper, and oil-control functions across the piston ring grooves. The two thinner compression rings (1/16 inch each) seal combustion pressure and minimize friction losses, while the 3/16-inch oil-control ring below them scrapes excess oil from cylinder walls and returns it to the crankcase—critical for engine longevity and preventing oil blowby. TOTAL SEAL's manufacturing process ensures consistent gaps, proper material hardness, and precise coatings that promote fast ring seating and consistent bore contact from idle through peak RPM. The 4.155-inch bore specification is sized for popular small-block applications, and quality piston ring sets like this are manufactured to hold tight tolerances that allow them to function correctly across varying engine temperatures and loads.

Engine builders, machine shops, and enthusiasts restoring or modifying 4.155-bore engines will find this ring set essential for any bottom-end rebuild where stock or performance pistons are being installed. Proper ring selection is non-negotiable; undersized or oversized rings will cause blow-by, increased emissions, and oil consumption, while correctly matched rings like the GP set ensure optimal compression and durability. Installation requires careful attention to ring gap clearance, proper positioning in grooves, and smooth cylinder wall prep—consult your engine manual or machine shop for torque specs and assembly procedures specific to your piston kit. This TOTAL SEAL ring set is compatible with most aftermarket and OEM pistons designed for 4.155-inch bores in small-block engines.