Peterson Fluid Systems Inline Pop-Off Valve -12AN BR20052 spring loaded design with 7/16"

spring loaded design with 7/16" studs

if that theoretical performance doesn't translate into real-life results

1961-1968 Chevrolet K10 Pickup

D350 Pickup

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Peterson Fluid Systems Inline Pop-Off Valve -12AN BR20052 spring loaded design with 7/16"Breather assembly is installed in line from engine's crankcase. Valve seals engine from air entering engine, but opens in the event of crankcase pressure, allowing crankcase to vent. Peterson Fluid Systems is the choice of champions for wet and dry sump oiling systems. Peterson Fluid Systems offers a complete system from their class leading oil pumps to their championship winning oil tanks, oil and fuel filters, and accessory drives. Peterson Fluid