Manley Valve - Exhaust, Valve-BBC S/D 1.940 1992-pontiac-firebird-esi4307584 BMR Suspension BK048 Aluminum Cradle

BMR Suspension BK048 Aluminum Cradle Bushings are the perfect wheelhop solution for any S550 Mustang where NVH is not a concern

meaning it can be easily installed with simple hand tools with no modifications required

Features on-car adjustability for additional clearance and centering aftermarket rear ends

They also allow for freer movement

Our Double Adjuster is machined from 4130 Chromoly

Manley Valve - Exhaust, Valve-BBC S/D 1.940 1992-pontiac-firebird-esi4307584 BMR Suspension BK048 Aluminum CradleManley 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