Sealed Power E-300K Engine Piston Ring Set

Sealed Power E-300K Piston Ring Set

Sealed Power E-300K is a standard-size engine piston ring set for classic V8 rebuilds. It is built for vintage Pontiac applications and uses modern ring materials to support compression control and long-term engine service.

Key Features

• Standard size engine piston ring set for rebuild work
• Top ring made of moly steel for wear resistance
• Second ring made of ductile material for dependable sealing
• File fit: No
• Coverage for 8-cylinder engines
• Sealed Power vintage components for engines over 35 years old
• ISO and QS certified manufacturing

Detailed Description

This Sealed Power E-300K piston ring set is intended for classic Pontiac engine rebuilds where standard-size rings are required. It is listed for 1970-1976 Pontiac Bonneville, Catalina, Grand Prix, LeMans, Parisienne, and Grand Am, plus 1971-1976 Pontiac Firebird and select Laurentian applications, including 1970-1973 Pontiac GTO. The ring design combines a moly steel top ring with a ductile second ring to support sealing and durability during restoration work.

For buyers searching for a Pontiac Bonneville piston ring set, Pontiac GTO engine rings, or a Sealed Power E-300K replacement for a vintage Pontiac V8 rebuild, this part matches the needs of standard-size service work. This part cross-references 300K and S1814 for the same application.

Common Uses

• Restoring compression in a worn Pontiac V8
• Replacing rings during a full engine rebuild
• Addressing oil control concerns from aged ring wear
• Correcting blow-by caused by tired cylinder sealing
• Returning a classic Pontiac engine to service after overhaul

Installation Notes and Tips

Confirm cylinder bore size before installation, since this set is standard size and not file fit. Measure ring end gap and follow the engine builder’s specifications for the exact Pontiac application. Clean the ring grooves thoroughly and verify piston and cylinder condition before assembly. For best results, match the rings to the correct year, model, and engine specification listed for your vehicle.

Quality Assurance

Sealed Power vintage components are manufactured for older applications with materials and production controls aimed at consistent performance and service life. ISO and QS certified manufacturing supports repeatable quality for classic engine rebuilds.