The Hilborn EFI-R injector manifold kits combine the technology of electronic fuel injection with the racing-born performance and aggressive looks of individual runner engine induction. The engine valley covers are sold separate to allow the customer to choose the correct valley cover kit based on the engine deck height
- Hilborn high-quality heat-treated aluminum valley cover castings, ceramic coated a beautiful dark gray
- The machined valley cover provides two AN-10 O-ring sealed ports, these ports can be used for crankcase breathers, installation of a dry sump oil scavenge pick-up, or an oil fill location
- The Hilborn Big Block Chevy valley covers are intended for use with a set of Hilborn EFI-R injection manifolds but these valley covers could also be used as part of a custom induction system being built.
- Ram Tubes and Lifter Valley Covers sold separately