Manley Valve - Exhaust, Valve-BBC S/D 1.900 2020 chevrolet camaro reducing differential movement by filling

reducing differential movement by filling the space between the bolt and bushing cup

with weak materials that can lead to traction loss and poor handling

Engineered as a direct OE replacement

and performance engineering—upgrade your truck today and experience the difference that true race-proven technology makes

Launch harder

Manley Valve - Exhaust, Valve-BBC S/D 1.900 2020 chevrolet camaro reducing differential movement by fillingManley Severe Duty Valves deliver the ultimate in strength, reliability, and high performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH 428 for exhaust and NK 844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400F, Manley exhaust valves endured 100 million cycles, while competitors failed after just