Piston Ring Set 4.035 Moly 1/16 1/16 3/16

The Piston Ring Set 4.035 Moly 1/16 1/16 3/16 by JE PISTONS is a premium race-series component engineered for high-performance engine builds requiring precision piston ring technology. Designed for 8-cylinder engines with a 4.030-inch bore, this file-fit ring set addresses the critical demands of competitive and modified powerplants where standard factory rings fall short. Whether you're building a street rod, race engine, or performance upgrade, these rings are purpose-built to deliver the sealing integrity and durability expected in demanding applications.

This piston ring set features plasma moly-coated ductile iron construction, a material combination that significantly improves wear resistance and reduces friction during engine operation. The 1/16-inch top ring thickness, paired with 1/16-inch second ring and 3/16-inch oil ring dimensions, provides optimized gas sealing and oil control across the piston's compression stroke. Standard tension design ensures proper ring-to-bore contact without excessive load, while the file-fit specification allows for precise installation tailored to your specific engine's bore dimensions and ring groove tolerances. Plasma moly coating protects against scuffing and extends ring life under high-RPM conditions, making this set ideal for turbo, supercharged, or nitrous-assisted engines.

Competition engine builders and serious performance enthusiasts benefit most from JE PISTONS' racing heritage and attention to material science. File-fit rings require careful measurement and honing to achieve proper clearances—professional installation is strongly recommended to maximize ring sealing and engine efficiency. This set is compatible with most 8-cylinder small-block and big-block applications within the 4.030-inch bore range, making it a versatile choice for builders targeting maximum horsepower and reliable ring seal under extreme operating conditions.