Engine Works Power Valve Block-Off Plugs

Engine Works power valve block-off plugs are designed to replace the power valve in racing applications where power valve enrichment is not required between the primary and secondary circuits. Racers sometimes prefer to race their cars without using a power valve. In these cases, the only way to properly block-off the power valve circuit is with a power valve plug and gasket. Includes the power valve block-off plug and a gasket.