Ultra-Seal Intake Manifold Gaskets Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block with Rectangle Port Heads Mr Gasket freeshipping Trail-ready upgrade without added complexity

Trail-ready upgrade without added complexity

5 Inch allowing use of wider tires

What we came up with is this high-ground-clearance exhaust system

Service Description: 109Q

Needle and Seat Size: 130

Ultra-Seal Intake Manifold Gaskets Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block with Rectangle Port Heads Mr Gasket freeshipping Trail-ready upgrade without added complexityUltra Seal intake manifold Gaskets are manufactured from cellulose nitrile composition Gasket material. Provides excellent sealing and durability. Incorporates Silicone beading around each intake and water outlet port to provide additional sealing strength on both sides of each Gasket. No Gasket sealer is required. For OE replacement, high performance street, drag race, and oval track use. Includes manifold end seals and distributor Gasket.