Manley, Severe Duty stainless valves, intake. STD - 57-69 XL (NU) 520185 The tunnel to include the

The tunnel to include the framework is 6

for various custom projects

slammed look with the lowest

Note: The 93-99 B

but when you need 100% waterproofing

Manley, Severe Duty stainless valves, intake. STD - 57-69 XL (NU) 520185 The tunnel to include theStandard size replacement. Dimensions: 1. 813" head dia. x . 309" stem dia. Standard overall length. Severe Duty valves. Proven quality over many years. Manufactured from high temperature stainless alloy to a perfect finish. Manley valves feature swirl polished, performance orientated shapes and durable chrome plated stems. Up to 30% weight reduction over stock components. Manley's 'Severe Duty' valves insure a stable valve train, even at high R. P.