They can have a reaction which can potentially damage the shield or shorten the longevity of the shield
Vehicle Applications: 1963 thru 1982 Pontiac Cars 6/8 Cylinders
Fire Retardant Cotton Cover
1975-1991 Ford E-350 EconolineFits 1967-1991 Ford
Aircraft quality natural satin aluminum shroud
Edelbrock Performer RPM Air-Gap Intake Manifold - SB Chevy - Polished - (Non-EGR) Helmet Bags They can have a reactionUtilizing the proven short runner tunnel ram style, both of these manifolds provide the next step up in performance for LT1 and LT4 owners. These are both direct stock replacements for OEM equipment with all required emissions features. 75011, Chevy, Chevrolet, Edelbrock, Intake Manifold, Intake, Manifold, Dual Plane, Performer RPM, RPM Air Gap, Polished Port exit dimensions: 1. 14" x 1. 95" Recommended intake gasket: Edelbrock #7201. Use RTV sealant