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Holley  |  SKU: 300-963

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

$976.95 USD

Fitment

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Warranty Information

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Description

Hi-Ram intake manifold with 105mm LS GenIV type throttle body flange type plenum top. A -10AN fuel rail kit is included.

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.

Features:

  • 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
  • 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.
  • Uses drive by wire or cable actuated GM Gen IV LS 4-bolt throttle bodies
  • 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
  • The coolant outlet is a standard Chevy thermostat housing flange. and (2) 1/2 NPT and (1) 3/8 NPT coolant ports are provided.
  • Power Band: 1500-8000 RPM
  • Black anodized EFI fuel rails are machined for -10AN O-ring fittings and come included with these EFI Hi-Ram kits.
  • Plenum Top Gasket Type ? 3/32? Round O-ring Cord
  • Cast 356-T6 Aluminum Construction, Natural, Satin As-Cast Aluminum Finish
  • Requires the use of early type GM or small cap MSD or Holley Distributors. Not compatible with HEI distributors
  • 2.40? tall x 1.60? wide port flange openings, uses Mr. Gasket intake manifold gasket #5817
  • Throttle Cable Bracket is supplied in the kit

Specs:

Basic Operating RPM Range 1500-8000
Brand Holley
Carburetor Studs Included No
Category Intake Manifolds
Color Natural
Construction Cast
Cylinder Head Port Shape Rectangle
EGR Port No
Emission Code 3
Engine Chevy Big Block V8
Finish Natural Cast
Fuel Injectors Included No
Fuel Rail(s) Included Yes
Fuel System Type EFI
Gasket Or Seal Included Yes
Grade Type Performance
Intake Port Gasket(s) Included No
Manifold Type Hi-Ram
Material Aluminum
Nitrous Bung(s) Included No
Plenum Finish Natural
Product Type Intake Manifold
Removable Runners No
Removable Top/Lid Yes
RPM Power Band 1500-8000
Single Or Dual Plane Type Single Plane
Throttle Body Bore Diameter 105
Throttle Body Included No
Throttle Bore 105
Warning California Proposition 65
Warranty Limited 90 Day

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