Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.

This Part Fits:

Year	Make	Model	Submodel
2004-2005	Cadillac	CTS	V
1998-2002	Chevrolet	Camaro	Z28
1997-2004	Chevrolet	Corvette	Base
2001-2004	Chevrolet	Corvette	Z06
1998-2002	Pontiac	Firebird	Formula
2004	Pontiac	GTO	Base