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Holley  |  SKU: 300-951

Holley 300-951 Hi-Ram Front-Feed EFI Intake Manifold Kit - Small Block Chevy

Small block Chevy Hi-Ram intake manifold, front-feed with 95mm LS throttle body flange

Regular price $2,031.70 NZD + GST
Shipping calculated at checkout.
⚠ Special Order Item — ships direct from supplier. No returns, exchanges, or cancellations once processed. Please allow 7–20 days shipping.

Description

Small block Chevy Hi-Ram intake manifold, front-feed with 95mm LS throttle body flange

Part Number: 300-951

Introducing the latest addition to the acclaimed Hi-Ram EFI intake manifold series, originally designed for the GM Gen IV LS3 engine. The Holley SBC Hi-Ram is engineered to elevate your vehicle’s performance to new heights. Unleash the Power of Your Engine with the Holley SBC Hi-Ram! The 300-951, a hood-height friendly Hi-Ram variant features a “front-feed” plenum and a forward-facing throttle body flange. This beast can handle up to a 95mm LS 4-bolt throttle body, including DBW throttle bodies. It’s the ultimate upgrade, replacing the popular Holley/Weiand Stealth-Ram intake manifold, renowned for boosting the performance of 1985-92 GM 5.7L TPI fuel-injected engines. The versatile fuel rail kits are compatible with both long and short type fuel injectors, ensuring flexibility and convenience. Experience the power and aesthetics of high-end billet and fabricated racing intake manifolds, all at the cost-effective price of cast aluminum. Perfectly designed to fit under the OE hood of Gen 1, 2, & 3 Camaros and Firebirds, the 300-951 is your ticket to transforming your ride into a high-performance machine!

Features and Benefits

• Power Band: 1500-8000 RPM
• Black anodized EFI fuel rails are machined for -8AN O-ring fittings and come included with these EFI Hi-Ram kits.
• The coolant outlet is a standard Small Block Chevy thermostat housing flange and (1) 1/2 NPT and (2) 3/8 NPT coolant ports are provided.
• Uses drive by wire or cable actuated GM Gen IV LS 4-bolt throttle bodies
• Requires the use of early type GM or small cap MSD or Holley Distributors. Not compatible with HEI distributors
• Throttle Cable Bracket is supplied in the kit
• Plenum Top Gasket Type – 3/32” Round O-ring Cord
• 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
• Is a hood-height friendly Hi-Ram variation and compatible with OE hoods for Gen 1, 2, & 3 Camaros and Firebirds. Should be compatible with most applications with a mild cowl induction hood
• The Small Block Chevy Hi-Ram manifold is available in either a traditional Hi-Ram 105mm plenum layout or with a hood-height friendly 95mm front-feed plenum layout
• Cast 356-T6 Aluminum Construction, Natural, Satin As-Cast Aluminum Finish
• Designed for 1955-86 265-400 Gen 1 Chevy engines fitted with cylinder heads having a standard intake manifold flange configuration. Not designed for raised intake port, 18 degree, or L31 Vortec type cylinder heads.
• 1.95” tall x 1.25” wide port flange openings, uses Mr. Gasket intake manifold gasket #5281

Specifications

  • Specifications
    Basic Operating RPM Range1500-8000
    BrandHolley
    Carburetor FlangeN/A
    Carburetor QuantityN/A
    Carburetor Studs IncludedN/A
    CategoryEngine
    CNC PortedNo
    ColorNatural
    ConstructionCast
    Cylinder Head Port ShapeRectangle
    Deck Height9.025
    EGR PortNo
    Emission Code4
    EngineChevrolet Small Block Gen I
    Flange StyleN/A
    Front Maximum Height9.63
    Fuel Injectors IncludedNo
    Fuel Rail(s) IncludedYes
    Fuel System TypeEFI
    Gasket Or Seal IncludedYes
    Grade TypePerformance
    Intake Port Gasket(s) IncludedNo
    Intake Runner Length6.35
    Manifold TypeHi-Ram
    MaterialAluminum
    Nitrous Bung(s) IncludedNo
    part typeEngine Intake Manifold
    Plenum FinishNatural
    Plenum Volume364
    Port Size1.95 x 1.25
    Product TypeIntake Manifold
    Rear Maximum Height9.83
    Removable RunnersNo
    Removable Top/LidYes
    Single Or Dual Plane TypeSingle Plane
    Sub CategoryCylinder Block Components
    Throttle Body Bore Diameter95mm
    Throttle Body Gasket IncludedYes
    Throttle Body IncludedNo
    Throttle Bore95
    Vacuum PortsYes
    WarningCalifornia Proposition 65
    WarrantyManufacturer's Limited 90 Day Warranty
  • Instructions

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