Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block with Oval Port Heads 1986-gmc-c1500-esi2467358 Intake Manifold - Crosswind -

Intake Manifold - Crosswind - Square Bore - Dual Plane - Aluminum - Natural - Vortec - Small Block Chevy - Each

Clearance Light - Hi-5 - 2007-15 GM Style - 15

250 in Stroke - Internal Balance - 58X Reluctor - Forged - Steel - 1-Piece Seal - GM LS-Series - Each

504 in - Duration 269 / 264 - 112 LSA - 1500 / 6200 RPM - GM V6 - Each

125 in Bore - 8

Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block with Oval Port Heads 1986-gmc-c1500-esi2467358 Intake Manifold - Crosswind -Mr. Gasket Ultra Seal Intake Manifold Gasketss 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 required. For original equipment replacement, high performance street, drag race and oval track use. Includes manifold end seals and