Engine Piston Set - without Rings

The Enginetech P3085(8)060 engine piston set is designed to deliver high performance and reliability for classic Pontiac vehicles from the 1970s and early 1970s. Crafted with precision, this piston set ensures proper fitment and optimal engine operation, making it an excellent choice for engine rebuilds and restorations. Each piston is engineered with matched weights to promote balanced engine performance and reduce vibrations, contributing to smoother operation and enhanced longevity. The set includes pistons with a bore diameter of 4.150 inches and a compression height of 1.480 inches, tailored specifically for compatible Pontiac models such as the Bonneville, Catalina, and Executive from 1970 to 1974. This set does not include rings, allowing you to select the appropriate rings for your specific application and preferences. Engineered by Enginetech, a family-owned company since 1982, these pistons are built for engine builders seeking quality, durability, and precise fitment. The pistons feature top compression ring thickness of 5/64 inch, second compression ring thickness of 1/16 inch, and oil ring thickness of 3/16 inch, ensuring efficient sealing and compression. The piston pin outside diameter is 0.9805 inches, designed to match OEM specifications for seamless installation and reliable performance. Whether you are restoring a vintage Pontiac or performing a professional rebuild, the Enginetech P3085(8)060 piston set provides the quality components needed to bring your engine back to optimal condition. Trust Enginetech’s commitment to quality and precision-engineered parts to support your engine rebuilding projects with confidence.

Features:

• Matched weights for balanced engine operation

• Top compression ring thickness: 5/64 inch

• Second compression ring thickness: 1/16 inch

• Oil ring thickness: 3/16 inch

• Piston pin outside diameter: 0.9805 inches

• Bore diameter: 4.150 inches

• Compression height: 1.480 inches

• Designed for 1970-1974 Pontiac models including Bonneville, Catalina, and Executive

Fits Following Models:
1970 Pontiac Bonneville
1970 Pontiac Catalina
1970 Pontiac Executive
1970 Pontiac Grand Prix
1970 Pontiac GTO
1970 Pontiac LeMans
1971 Pontiac Bonneville
1971 Pontiac Catalina
1971 Pontiac Firebird
1971 Pontiac Grand Prix
1971 Pontiac Grand Safari
1971 Pontiac Grandville
1971 Pontiac GTO
1971 Pontiac LeMans
1972 Pontiac Bonneville
1972 Pontiac Catalina
1972 Pontiac Firebird
1972 Pontiac Grand Prix
1972 Pontiac Grand Safari
1972 Pontiac Grandville
1972 Pontiac GTO
1972 Pontiac LeMans
1973 Pontiac Bonneville
1973 Pontiac Catalina
1973 Pontiac Firebird
1973 Pontiac Grand Am
1973 Pontiac Grand Prix
1973 Pontiac Grand Safari
1973 Pontiac Grandville
1973 Pontiac GTO
1973 Pontiac LeMans
1974 Pontiac Bonneville
1974 Pontiac Catalina
1974 Pontiac Firebird
1974 Pontiac Grand Am
1974 Pontiac Grand Prix
1974 Pontiac Grand Safari
1974 Pontiac Grandville
1974 Pontiac LeMans
1975 Pontiac Bonneville
1975 Pontiac Catalina
1975 Pontiac Firebird
1975 Pontiac Grand Prix
1976 Pontiac Bonneville
1976 Pontiac Catalina
1976 Pontiac Firebird
1976 Pontiac Grand Prix
1976 Pontiac LeMans