Total Seal Maxseal Piston Rings - Gapless - File-Fit Piston Ring Set - Bore Size: 4.165" - Top Ring: 1/16" - 2nd Ring: 1/16" - Oil Ring: 3/16" Clutch Designed for rectangular port heads

Designed for rectangular port heads

Interlocking lid design allows multiple totes to be securely stacked together

1965-1970 Ford Falcon

CNC Machined 6061-T6 Aluminum Base

Extended Swiveler

Total Seal Maxseal Piston Rings - Gapless - File-Fit Piston Ring Set - Bore Size: 4.165" - Top Ring: 1/16" - 2nd Ring: 1/16" - Oil Ring: 3/16" Clutch Designed for rectangular port headsEight cylinder sets have AP (Advanced Profiling) steel top rings with extremely tight tolerances for improved combustion sealing. Sets include AP gapless top rings, conventional second rings, and standard tension oil rings. Instructions for file fitting included. Total Seal is known for their piston ring sets. They offer a wide selection of off the shelf options and also offer and the ability to custom order ring sets to meet your specifications.