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Ships within 48 hours · Estimated delivery Sep 1 - Sep 6
1 HEMI 02/07
Contour curved hangers
55366439AG
The E-Tuner provides the ability to fine-tune air-fuel ratios
housing valve
manley chevrolet big block exhaust valve kit 1 940in head dia 5 422in o a length 0 3110in stem Modules 1 HEMI 02/07Manley 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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