Lifter Valley Vents - Hex Head - 1/4 in NPT - Aluminum - Clear Anodized - Small Block Chevy - Set of 8

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Lifter Valley Vents, 1/4 in. NPT Male Threads, Aluminum, Natural, Chevy, Small Block, Set of 8

Unlike pipe plugs or screen kits, which only do part of the job, Allstar Performance lifter valley vents provide all of the functions to positively vent your crankcase and eliminate oil drain-through and windages losses. When they are used with valley screens, they can prevent damage from broken valvetrain components. These vents are made from quality material and feature 1/4 in. NPT threads and a 9/16 in. hex head to ease the installation.