Edelbrock · New
Edelbrock 1/2In Upper Manifold Spacer Kit for Ford Performer RPM II 5 0L Manifold (7123)
MPN 8729 · Store SKU ede8729
Supplier stock checked 11/7/2026, 10:28:21 AM UTC. Adding a part does not reserve it.
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Product details
Edelbrock part #8729 spacer kit includes a 7/16" thick spacer and two .045" thick gaskets for a total thickness of 1/2". The kit also has new base to upper fasteners to accommodate the spacer. There are several benefits to the kit. First it raises the upper manifold 1/2" for increase valve cover to upper plenum clearance. This is needed to run a taller cover such as when roller rockers are used. It also provides heat insulation between the lower and upper manifolds. As a third benefit the 1/2" extra runner length helps to produce more torque. Fits all Performer RPM II 5.0 PN 7123 based manifolds. Edelbrock Wood Fiber Laminate 1/2" Base to Upper Spacer Plate kit for Performer RPM II 5.0 Manifold PN 7123. Includes spacer plate, two gaskets, and longer bolts. 1/2in. Base to Upper Spacer Plate Kit for Performer RPM II 5.0 Manifold PN 7123 1/2" Base to Upper Spacer Plate Kit for Performer RPM II 5.0 Manifold PN 7123 Intake Manifold Spacer Kit
Manufacturer fitment & guides
- Ford:Mustang V8:302 (5.0L)
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- California Proposition 65: Y
