Intake ManifoldSmall Block Chevy with 1996-2002 Vortec L31 Cast Iron HeadsSquare Bore (non-EGR)Idle to 5500 RPMPolished Aluminum Port exit dimensions: 1.04" x 2.03"Recommended Intake Gasket: JEGS p/n 555-210003Estimated runner length - Shortest: 4.00"Estimated runner length - Longest: 6.50"Manifold height: (A) 4.13", (B) 5.21"Click here to determine carburetor pad height.May also be used on Vortec or 1995-Earlier blocks with Vortec pattern cylinder headsAccepts late model alternator, water neck, AC, and HEINo provision for divorced or heated chokeStock/stamped steel valve covers may require 3/16" (or thicker) valve cover gaskets. We recommend: 720-168, 720-5867 or 375-1648 for adequate runner clearance.JEGS Carb Recommendations/NotesCarburetors 570 CFM670 CFM770 CFMUp to 300 HP300 to 400 HP400 to 500 HPManual Choke 510-0-81570 510-0-81670 510-0-81770Electric Choke 510-0-80570 510-0-80670 510-0-80770Carburetor Studs 555-158401-1/2" StudsSuggested for carb and gasket only 555-158412" StudsSuggested for carb and 1/2" spacer 555-158422-1/2" StudsSuggested for carb and 1" spacer 555-158463-1/2" StudsSuggested for carb and 2" spacerCarburetor Base Gaskets555-16100Open 555-161054-HoleIntake Manifold Bolts 555-83201SBC - VortecCarburetor Fuel Inlet Lines & Fittings Carburetor Spacers Fuel Filters Carburetor Linkage, Choke Kits &...
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