Power Valve Check Ball Kit - 125-500 409-stainless 00-06 gMC Yukon XL 2500

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Power Valve Check Ball Kit - 125-500 409-stainless 00-06 gMC Yukon XL 2500Overview: Power valve "blowout" protection can now be added to pre '92 model 2300, 4150 and 4160 carburetors. Consisting of a spring, brass seat and check ball, this kit will effectively protect the power valve and is easy to install. Included is the proper drill bit size, with stop, to facilitate installation. Detailed instructions are included. Features: Spring Brass Seat Check Ball Protects Power Valve Easy To Install Proper Drill Bit Size w Stop