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.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 1986-1995 |
Ford |
Mustang |
GT |
| 1995 |
Ford |
Mustang |
GTS |
| 1986-1993 |
Ford |
Mustang |
LX |
| 1993-1995 |
Ford |
Mustang |
SVT Cobra |
| 1993 |
Ford |
Mustang |
SVT Cobra R |
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