IM KIT,105MM EFI TOP,BBC HI-RAM SATIN

Brand New Holley Hi-Ram EFI Intake Manifold Kit with 105mm LS Gen IV Throttle Body Flange for Big Block Chevy (Part #300-963).

Holley Hi-Ram EFI intake manifolds are now available for 1965 & 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 & LT, Gen 3 Hemi, SBF Ford, and Ford Coyote engine platforms. The iconic Chevy SBC & BBC platforms are primed for 21st century induction systems, Holley EFI engine management, and Holley fuel systems.

Fits:

• Chevrolet:
  • 1965 & later 396-502+ MKIV-MKVI Big Block Chevy engines with Standard Intake Flange & Rectangle Port Cylinder Heads

Features:

• 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

Specs:

• Basic Operating RPM Range: 1500-8000 RPM
  
• Brand: Holley
  
• Category: Intake Manifolds
  
• CNC Ported: No
  
• Construction: Cast
  
• Cylinder Head Port Shape: Rectangle
  
• Deck Height: 9.8 IN
  
• EGR Port: No
  
• Engine: Chevy Big Block V8
  
• Fuel Injectors Included: No
  
• Fuel Rail(s) Included: Yes
  
• Fuel System Type: EFI
  
• Grade Type: Performance
  
• Intake Port Gasket(s) Included: No
  
• Manifold Type: Hi-Ram
  
• Material: Aluminum
  
• Nitrous Bung(s) Included: No
  
• Part Type: Engine Intake Manifold
  
• Plenum Finish: Natural
  
• Removable Runners: No
  
• Removable Top/Lid: Yes
  
• Single Or Dual Plane Type: Single Plane
  
• Throttle Body Bore Diameter: 105
  
• Throttle Body Gasket Included: Yes
  
• Throttle Body Included: No
  
• Vacuum Ports: Yes
  

You can view and download the instruction booklet here.