Pontiac 400 Viton Rear Main Seal

The Pontiac 400 Viton Rear Main Seal (SCE 22804) is an essential engine component designed to prevent oil leakage at the rear of the crankshaft, where the transmission connects to the engine block. This seal is crucial for Pontiac 400 big-block owners who are undertaking engine rebuilds, restorations, or dealing with persistent oil leaks at the bellhousing. A reliable rear main seal is vital for maintaining oil integrity within the engine.

Engineered by SCE Gaskets, this seal is made from Viton elastomer, a high-performance fluorocarbon material known for its excellent resistance to heat and oil compared to traditional Neoprene. Viton seals retain their elasticity over a broader temperature range, which helps prevent hardening and cracking that can lead to leaks, especially in high-performance applications. This precision-engineered seal is designed to fit the unique crankshaft journal diameter and block bore of the Pontiac 400, ensuring a secure and reliable installation.

Technicians and enthusiasts working on Pontiac 400 engines will find this rear main seal indispensable during complete gasket sets and crankshaft servicing. Its durability and effectiveness make it a critical component for anyone looking to enhance the longevity and performance of their engine. Proper installation requires the removal of the transmission and rear crankshaft seal retainer, making it an important step in any engine rebuild project.