Hi-Ram EFI Intake Manifold Kit - Big Block Chevy - Holley - 300-963

Holley Hi-Ram EFI intake manifolds are now available for 1965 and later 396-502+ MKIV-MKVI Big Block Chevy engines with standard intake flange rectangle-port cylinder heads. Traditional Big Block Chevy engines can now also be fitted with the Holley Brand Hi-Ram type EFI intake manifolds that have so well served GM LS and LT, Gen 3 Hemi, SBF Ford, and Ford Coyote engine platforms. The iconic Chevy SBC and BBC platforms are primed for 21st century induction systems, Holley EFI engine management, and Holley fuel systems.
2.40” tall x 1.60” wide port flange openings, uses Mr. Gasket intake manifold gasket #5817 - Cast 356-T6 Aluminum Construction, Natural, Satin As-Cast Aluminum Finish - Throttle Cable Bracket is supplied in the kit - Plenum Top Gasket Type – 3/32” Round O-ring Cord - Power Band: 1500-8000 RPM - Requires the use of early type GM or small cap MSD or Holley Distributors. Not compatible with HEI distributors - Uses drive by wire or cable actuated GM Gen IV LS 4-bolt throttle bodies - Black anodized EFI fuel rails are machined for -10AN O-ring fittings and come included with these EFI Hi-Ram kits. - The coolant outlet is a standard Chevy thermostat housing flange. and (2) 1/2 NPT and (1) 3/8 NPT coolant ports are provided. - Hi-Ram intake manifolds are a cost-effective alternative to fabricated sheet-metal or billet manifolds for high-performance applications where induction system height is not limited - 300-961, 300-963, and 300-964 are designed for 1965 & later 396-502+ MKIV-MKVI standard 9.80” deck height Big Block Chevy engines with standard intake flange rectangle-port cylinder heads. - The Big Block Chevy Hi-Ram manifold is available in either a traditional Hi-Ram 105mm plenum top or with a 2 x 4150 4-barrel throttle body plenum top options - MAP sensor port is for a GM Gen IV LS MAP sensor, manifold also has provisions for (1) 1/8 NPT, (1) 1/4 NPT, (1) 3/8 NPT fittings to the plenum
part type: Engine Intake Manifold | Brand: Holley | Material: Aluminum

Detailed Fitment Results
Year Engine Size 1900 7.4 1900 6.6 1900 7 1900 6 1900 6.5