Enginetech S290V-20 Valve Stem Seal Set Positive GM 2.9L 3.7L 4.2L

The Enginetech S290V-20 is a complete valve stem seal set designed for GM inline 4.2L, 3.7L, and 2.9L engines. This set includes 20 positive-type valve stem seals engineered to prevent oil from entering the combustion chamber through the valve guides.

Key Features:

• Includes 20 valve stem seals for complete engine coverage
• Positive seal design for superior oil control
• Precision-molded to OE specifications for proper fit
• High-temperature resistant materials for long service life
• Direct replacement for GM applications

Applications:

• GM 4.2L Vortec inline 6-cylinder engines
• GM 3.7L inline 5-cylinder engines
• GM 2.9L inline 4-cylinder engines

Enginetech valve stem seals help restore compression, reduce oil consumption, and eliminate blue smoke on startup. Essential for engine rebuilds and cylinder head reconditioning work.