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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
These Roto-Joints install with a gentle press fit and are retained by a spiral retaining ring
3058-650 - 1978-1988 GM G-Body
or restoration projects
high-durometer bushings add a solid
5" drop in the rear
Manley Valve - Exhaust, Valve-S/D 1.900,+.100 Shopify Collective These Roto-Joints install with aManley 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
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