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Holley EFI Hi-Ram Intake Manifolds 300-950 Manifolds, Hi-Ram, Throttle Body, 105mm Bore, Standard Deck, Aluminum, Natural, Chevrolet, Small Block, Each

Holley EFI Hi-Ram Intake Manifolds 300-950 Manifolds, Hi-Ram, Throttle Body, 105mm Bore, Standard Deck, Aluminum, Natural, Chevrolet, Small Block, Each

A$2,505.12
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Holley offers EFI Hi-Ram intake manifolds for a variety of applications, including many vehicles from the 1950s, '60s, '70s, and '80s with a Chevy small block Gen I engine. Fuel rail kits are provided and have mounting for both long and short type fuel injectors. These manifolds offer the performance potential and the appearance of professionally prepared billet and fabricated racing intake manifolds at the affordable price of a cast-aluminum product. They deliver 21st century performance for the iconic small-block Chevy engine.

* Model 300-950 is of standard Hi-Ram configuration with a "top-feed" plenum and a plenum top designed to accept up to an 105mm Gen IV LS 4-bolt throttle body, including drive-by-wire throttle bodies.

* Model 300-951 is a hood-height friendly Hi-Ram variation which has a "front-feed" plenum and a forward-facing throttle body flange which accepts an up to 95mm LS 4-bolt throttle body, also, including DBW throttle bodies. It's an upgrade replacement for the Holley/Weiand Stealth-Ram intake manifold which was a popular manifold used to significantly improve the performance of 1985-92 GM 5.7L TPI fuel-injected engines. The 300-951 system installs under the OE hood for Gen 1, 2, and 3 Camaros and Firebirds. It should be compatible with most applications with a mild cowl induction hood.

* Uses drive-by-wire or cable-actuated GM Gen IV LS 4-bolt throttle bodies
* Throttle cable bracket is supplied in the kit
* GM Gen IV LS MAP sensor port. Also has provisions for (1) 1/8 NPT, (1) 1/4 NPT, (1) 3/8 NPT fittings to the plenum
* Power band: 1,500-8,000 rpm
* Black anodized EFI fuel rails are machined for -6 AN O-ring fittings and come included with these EFI Hi-Ram kits
* Plenum top gasket type – 3/32 in. 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
* 1.95 in. tall x 1.25 in. wide port flange openings

Part Type

SBC Hi-Ram Kit 105mm EFI Top-Feed

Data: v4.2 - Upd: 2026-09-29 03:28:14

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
300-950
Product Attributes - Part Type
Intake Manifolds, Fuel Injected
Product Attributes - Product Line
Holley EFI Hi-Ram Intake Manifolds
Product Attributes - UPC
90127857403
Product Attributes - Cylinder Head Configuration
Stock
Product Attributes - Fuel Injection Style
Multi-port
Product Attributes - Basic Operating RPM Range
3,500-8,000
Product Attributes - Intake Section Included
Complete
Product Attributes - Throttle Body Bore Size
105mm
Product Attributes - Engine Block Deck Height
Standard deck
Product Attributes - Injectors Included
No
Product Attributes - Multi-Port Fuel Rails Included
Yes
Product Attributes - EGR
No
Product Attributes - Aftermarket Fuel Rail Required
No
Product Attributes - Throttle Body Included
No
Product Attributes - Supplemental Bosses Cast-In
No
Product Attributes - Supplemental Bosses Machined
No
Product Attributes - Runners Included
No
Product Attributes - Runners Removable
No
Product Attributes - Plenum Material
Aluminum
Product Attributes - Plenum Finish
Natural
Product Attributes - Base Material
Aluminum
Product Attributes - Base Color
Natural
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Holley
StreetFX SKU hly300-950
SFX Item ID 4784737
Supplier Item Code 4784737
Manufacturer SKU 300-950
Manufacturer UPC 90127857403
Alternative References HOL300-950, 105mm

Compatibility

Application Data
  • Beginning Year1955
    Ending Year1957
    Engine FamilyChevy small block Gen I
    Engine Size4.3L/265
    Engine TypeV8
    MakeCHEVROLET
  • Beginning Year1957
    Ending Year1967
    Engine FamilyChevy small block Gen I
    Engine Size4.6L/283
    Engine TypeV8
    MakeCHEVROLET
  • Beginning Year1962
    Ending Year1969
    Engine FamilyChevy small block Gen I
    Engine Size5.3L/327
    Engine TypeV8
    MakeCHEVROLET
  • Beginning Year1964
    Ending Year1967
    Engine FamilyChevy small block Gen I
    Engine Size5.4L/327
    Engine TypeV8
    MakeCHEVROLET
  • Beginning Year1967
    Ending Year1969
    Engine FamilyChevy small block Gen I
    Engine Size4.9L/302
    Engine TypeV8
    MakeCHEVROLET
  • Beginning Year1967
    Ending Year1986
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Engine TypeV8
    MakeCHEVROLET
  • Beginning Year1968
    Ending Year1973
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/307
    Engine TypeV8
    MakeCHEVROLET
  • Beginning Year1970
    Ending Year1980
    Engine FamilyChevy small block Gen I
    Engine Size6.6L/400
    Engine TypeV8
    MakeCHEVROLET
  • Beginning Year1975
    Ending Year1976
    Engine FamilyChevy small block Gen I
    Engine Size4.3L/262
    Engine TypeV8
    MakeCHEVROLET
  • Beginning Year1976
    Ending Year1986
    Engine FamilyChevy small block Gen I
    Engine Size5.0L/305
    Engine TypeV8
    MakeCHEVROLET
  • Beginning Year1979
    Ending Year1982
    Engine FamilyChevy small block Gen I
    Engine Size4.4L/267
    Engine TypeV8
    MakeCHEVROLET

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