JEGS Small Block Chevy 1955-1986 Intake Manifold | Non-EGR Design | Idle - 5500 RPM Power Range | Cast Aluminum | Square Bore Carburetor Mounting Pad
Brand: JEGS

Intake Manifold1955-1986 Small Block Chevy 265-283-302-327-350-400Square Bore (non-EGR)Idle to 5500 RPMCast Aluminum Port exit dimensions: 1.17" x 1.90"Recommended Intake Gasket For Apps without Heat cross over use JEGS p/n 555-210002
Recommended Intake Gasket For Apps with Heat cross over use JEGS p/n 555-210004Estimated runner length - Shortest: 4.00"Estimated runner length - Longest: 7.00"Manifold height: (A) 4.29", (B) 5.31"Click here to determine carburetor pad height.Also Fits 1987-Up stock aluminum heads (does not fit 1987-Up cast iron or Chevrolet Bow Tie heads)Accepts late model choke, water neck, AC, alternator, and HEINo provision for divorced or heated chokeStock/stamped steel valve covers may require 3/16" (or thicker) valve cover gaskets. We recommend: 555-21100, 555-210075 or 555-210070 for adequate runner clearance.JEGS Carb Recommendations/NotesCarburetors 570 CFM670 CFM770 CFMUp to 300 HP300 to 400 HP400 to 500 HPManual Choke510-0-81570*510-0-81670*510-0-81770*Electric Choke510-0-80570*510-0-80670*510-0-80770** Square Flange Carburetors Require Adapter Plate 555-15442Carburetor Studs555-158401-1/2" StudsSuggested for carb and gasket only555-158412" StudsSuggested for carb and 1/2" spacer555-158422-1/2" StudsSuggested for carb and 1" spacer555-158463-1/2" StudsSuggested for carb and 2" spacerCarburetor Base Gaskets555-16100Open (Square Flange)555-161054-Hole (Square Flange)555-161204-Hole (Spreadbore)Intake Manifold Bolts555-83200SBC - Standard Carburetor Fuel Inlet Lines & FittingsCarburetor SpacersFuel FiltersCarburetor Linkage, Choke Kits &...

IMPROVE ENGINE PERFORMANCE AND HORSEPOWER with this higher flowing intake manifold compared to a stock cast iron intake
DESIGNED TO FIT WITH POPULAR AFTERMARKET SQUARE BORE 4150 CARBURETORS including Edelbrock, Holley, Quickfuel, Proform, and more
IDLE TO 5500 RPM POWER BAND for street or mild race applications
FITS GM AND CHEVROLET CYLINDER HEADS from 1955 through 1986
FABRICATED FROM CAST ALUMINUM for weight savings and improved performance