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Engine Intake Manifold Spacer #8729 For Edelbrock Part #7123, 7184, 7185

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.
In stock
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.
More Information
Manufacturer Edelbrock
Application Application Specific
UPC 00085347087297
Recommended Use For Edelbrock Part # 7123, 7184, 7185
Mounting Hole Quantity 8
Mounting Hole Diameter 0.344 in
Quantity Kit
Availability Note Available to Order
Warranty 12 Months
Emissions Code
Hazardous Materials Warning WARNING: This product can expose you to Chromium, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • We recommend the use of Edelbrock Gasgacinch (Part #9300) on the intake manifold mounting surfaces of the cylinder head and on the bottom side of the intake manifold gaskets (side without silicon beads). The Gasgacinch will secure the gaskets in place, ensuring a proper seal.; Do not overtighten the manifold to base fasteners. Use a short box or open end wrench only.; Do not disconnect fuel lines unless absolutely necessary. Special tools and procedures are required to re-install fuel lines.; You must check your hood clearance before installation. Due to the 1/2" additional height of the spacer, this spacer will not fit under the stock hood on some vehicles.
Color Light Brown
Material Wood Fiber Laminate
Thickness .500