SBC Valve Cover Spacers w/Spring Oiling Rails

The MOROSO SBC Valve Cover Spacers with Spring Oiling Rails (MOR68330) are precision-engineered intake manifold risers designed for Small Block Chevy engines requiring optimized oil distribution to valve train components. These spacers address a critical cooling and lubrication gap in high-performance and street applications where stock valve cover geometry restricts oil flow to rocker arms and pushrods. Built for builders and engine enthusiasts who demand reliable oiling under sustained load, this pair delivers the controlled oil delivery necessary for engine longevity and consistent performance in both naturally aspirated and forced-induction builds.

Each spacer incorporates integral spring oiling rails and 0.25-inch jet fittings, allowing technicians to direct pressurized oil directly to critical valve train bearing surfaces while maintaining back-pressure regulation. The 0.25-inch jet design provides measurable oil flow control—smaller jets restrict excessive oil volume that can aerate and reduce film strength, while this specification balances flow for small-block applications running typical street and moderate racing oil pressures (50–70 psi). Included fittings mate with standard hose and adapter combinations, eliminating the need for custom fabrication. The pair weighs 3.05 lbs and installs between the cylinder head and valve cover, adding minimal height while preserving intake manifold clearance on most SBC platforms.

Small Block Chevy owners running modified cam profiles, roller rockers, or extended-duration grinds benefit most from this upgrade, as aggressive valve timing increases rocker arm loads and bearing wear rates without dedicated oil supply. Installation requires draining coolant and removing the valve cover assembly; no cylinder head work is necessary. Compatibility spans all small-block variants (262–400 cubic inches) using conventional valve cover mounting, making this spacer kit a straightforward bolt-on solution for engine builders prioritizing reliability over OEM designs. Ideal for street machines, circle-track competitors, and marine applications where consistent valve train cooling directly impacts component life and power delivery.