S Silverflash New member May 3, 2023 #1 does it matter which side the PCV valve is installed in a 390 FE engine?
KULTULZ Well-known member May 3, 2023 #2 No. One side valve (manifold vacuum), the other side filtered fresh air inlet.
fordor41 Well-known member May 3, 2023 #3 if you mean which side of the engine, opposite valve cover that air intake is into. Most Fords are on the drivers side.
if you mean which side of the engine, opposite valve cover that air intake is into. Most Fords are on the drivers side.
rotorwrench Well-known member May 4, 2023 #4 The old 390 engines in the early to mid 60s had the valve on the back of the manifold. They used 390s so long that they modernized to the valve cover over time.
The old 390 engines in the early to mid 60s had the valve on the back of the manifold. They used 390s so long that they modernized to the valve cover over time.