Product Review

Intake Manifold

Small Block Chevy with 1996-Up Vortec L31 Cast Iron Head

Square Bore (non-EGR)

Idle to 5500 RPM

Cast Aluminum

Port exit dimensions: 1.04" x 2.03"

Recommended Intake Gasket: JEGS p/n 555-210003

Estimated 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 heads

Accepts late model alternator, water neck, AC, and HEI

No provision for divorced or heated choke

Stock/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 - Vortec

 

Carburetor Fuel Inlet Lines & Fittings

Carburetor Spacers

Fuel Filters

Carburetor 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
• FITS GM AND CHEVROLET VORTEC CAST IRON CYLINDER HEADS from 1996 through 2002
• IDLE TO 5500 RPM POWER BAND for street or mild race applications
• FABRICATED FROM CAST ALUMINUM for weight savings and improved performance