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25-inch DOM steel tubing
brass and bronze cooling systems
are too complex for the average person to be able to revalve
Upgrade to this double adjustable panhard bar for superior strength and rear end control
Installation is easy with bolt-in components that can be completed in just a few hours
Manley Valve - Exhaust, Valve-P/F 1.600,+.100 firebird 25-inch DOM steel tubingManley 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
