Fel-Pro Performance Chev LS Intake Manifold Gasket Set # 1208-3Intake Manifold Gaskets, Composite with Coating and Printoseal, Rectangular Port, Chevy, Set Port Height (in.): 2. 450 Port Width (in.): 1. 450 Gasket Material: Composite with coating and Printoseal Thickness (in.): 0. 060 Port Style: Rectangular Upper Intake Manifold Plenum Gasket Included: No Quantity: Sold as a set. Fel Pro Performance Intake Manifold Gasket Sets Most Fel Pro Performance intake manifold gaskets have Printoseal construction, which