moroso lifter valley vents, 1/4in. npt, aluminium, blue anodized, for chevrolet, small block, set

Lifter Valley Vents. Fits SBC and others, 1/4 NPT with Hex Head Positive ventilation to upper engine Prevents drainback to crankshaft Helps stop excessive windage and horsepower loss All Aluminium — 8 per kit