Total Seal Maxseal Gold Gapless Top Ring File Fit Piston Rings - Bore Size: 4.1130" - Top Ring: 1/16" - 2nd Ring: 1/16" - Oil Ring: 3/16" CS-SCAN-ADPT but can easily be pulled

but can easily be pulled down should it be required when driving into the bright low sunlight

GM Calipers

Low tension set to further reduce friction (not recommended for street use)

The O-ring material was developed specifically for the factory quick connects and was optimized to resist todays fuels like E85 and new fuel additives that damage common O-rings

1966-74 Chevrolet Chevelle 6 or 8 cylinder engine without a console

Total Seal Maxseal Gold Gapless Top Ring File Fit Piston Rings - Bore Size: 4.1130" - Top Ring: 1/16" - 2nd Ring: 1/16" - Oil Ring: 3/16" CS-SCAN-ADPT but can easily be pulledEight 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.