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HolleyPart 300-963Made in CN
Product Details
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Key Features
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.
Hi-Ram intake manifold with 105mm LS GenIV type throttle body flange type plenum top. A -10AN fuel rail kit is included.
- 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
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About this product
Hi-Ram intake manifold with 105mm LS GenIV type throttle body flange type plenum top. A -10AN fuel rail kit is included.
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Product Specifications
Automotive Item Grade
Performance
Basic Operating RPM Range
1500-8000
Brand
Holley
California Proposition 65 Chemical Name
4
Carburetor Studs Included
No
Category
Intake Manifolds
CNC Ported
No
Color
Natural
Construction
Cast
Cylinder Head Port Shape
Rectangle
Deck Height
9.8
EGR Port
No
Emission Code
3
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
Part Type
Engine Intake Manifold
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 Gasket Included
Yes
Throttle Body Included
No
Throttle Bore
105
Vacuum Ports
Yes
Warning
California Proposition 65
Warranty
Manufacturer's Limited 90 Day Warranty
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Warranty & Compliance
Warranty
Manufacturer's Limited 90 Day Warranty
Country of Origin
CN
Emissions Code
3
HS Code
8409915085
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Dimensions & Shipping
Product Dimensions
24.25 × 18.5 × 14.5 in
Shipping Dimensions
24.25 × 18.5 × 14.5 in
Weight
18824 g (18.82 kg)