Manley Valve - Exhaust, Valve-S/D 1.900,+.100 1981-ford-f-150-esi8916162 AB8450-1 - 1968-1972 GM A-Body

AB8450-1 - 1968-1972 GM A-Body Shock/Spring Lowering Kit

provides improved limited slip operation under extreme loads and differential temperature

Avoid use with pumps

these springs are lighter and have increased travel due to the larger distance between the coils

precise fitment

Manley Valve - Exhaust, Valve-S/D 1.900,+.100 1981-ford-f-150-esi8916162 AB8450-1 - 1968-1972 GM A-BodyManley 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