Holley Hi Ram Blower Adaptor Plate.
Holley Hi Ram blower adaptor
This adaptor simply bolts onto a Holley Hi Ram manifold base. It will fit LS1 or LS3.
It has an o-ring groove machined on the top surface to seal against the blower.
Machined pockets to remove unnecessary weight.
Note: The Holley intake must be tapped to 5/16″ for the top adaptor plate. No drilling is needed, just tapping. All 5/16″ bolts and o-ring cord are supplied with the adaptor plate.