SKU: 37814703614

Holley Hi-Ram EFI Intake Manifold Kit - Big Block Chevy 300-964

Sale price$503.08 Regular price$558.98
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Description

Holley Hi-Ram EFI Intake Manifold Kit - Big Block Chevy 300-964Hi Ram intake manifold with 2x4 4150 plenum top. A 10AN fuel rail kit is included 300 964. 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

Hi-Ram intake manifold with 2x4 4150 plenum top. A -10AN fuel rail kit is included - 300-964.

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 coolant outlet is a standard Chevy thermostat housing flange. and (2) 1/2 NPT and (1) 3/8 NPT coolant ports are provided.
  • Cast 356-T6 Aluminum Construction, Natural, Satin As-Cast Aluminum Finish
  • Power Band: 1500-8000 RPM
  • Plenum Top Gasket Type – 3/32” Round O-ring Cord
  • 2.40” tall x 1.60” wide port flange openings, uses Mr. Gasket intake manifold gasket Part Number 5817
  • 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.
  • 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
  • Throttle Cable Bracket is supplied in the kit
  • 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
  • Requires the use of early type GM or small cap MSD or Holley Distributors. Not compatible with HEI distributors
  • 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
  • 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.

Applications: 

  • Big Block Chevy Engines (1965 and later MKIV, MKV, MKVI)
  • 6.0L V8 366 CID
  • 6.5L V8 396 CID
  • 6.6L V8 402 CID
  • 7.0L V8 427 CID
  • 7.4L V8 454 CID

Specs:

Basic Operating RPM Range 1500-8000
Brand Holley
Carburetor Flange Square/4150
Carburetor Quantity 2
Carburetor Studs Included No
Category Intake Manifolds
CNC Ported No
Color Natural
Construction Cast
Cylinder Head Port Shape Rectangle
Deck Height 9.8 in
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 3.6
Throttle Body Gasket Included No
Throttle Body Included No
Vacuum Ports Yes
Warning California Proposition 65
Warranty Limited 90 Day
Part Number 300-964

Emissions: 

  • This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.
  • The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
    • 1965 and older U.S. manufactured California Certified vehicles
    • 1967 and older U.S. manufactured Federally Certified vehicles
    • 1967 and older Foreign manufactured vehicle
  • WARNING: It is against the law to install this part on an Emissions Controlled Vehicle 
  • The following vehicles are considered Emissions Controlled Vehicles:
    • 1966 and newer U.S. manufactured California Certified vehicles
    • 1968 and newer U.S. manufactured Federally Certified vehicles
    • 1968 and newer Foreign manufactured vehicle
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37814703614

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Shelby
Bozeman, US
★★★★★ 5
Love It!
Nice sturdy phone holder. Fits perfect for a BMW X3 & iPhone 17 Pro Max. Flawless install. Adjustable to accommodate different cases. Exactly what I was looking for. Worth the price!
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Reviewed in the United States on April 20, 2026
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Kelly Refer
Lake Worth, US
★★★★★ 5
Great cell phone mount, super easy to install!!!
This is an awesome cell phone holder for the car! I have a 2022 X3 and it works perfectly and is super sturdy. It was so easy to install and I love that the directions include a QR code you can scan and watch a video on installation making it even easier. Once you put your phone into the holder it stays put and is in the perfect location so you can see the screen without taking your eyes off the road. I definitely recommend this cell phone mount for your vehicle.
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Reviewed in the United States on February 14, 2026
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Stan
Omaha, US
★★★★★ 5
Great product but a bit expensive
Style: Charging MagSafe Mount
Well built. Comes with cable management. The rear mechanism doesnt use adhesives, so it comes loose after heat and rough roads. Just put some sticky tape and itll work great. Charging speeds are fast and most importantly the ball joint is tight and doesnt shake over rough roads.
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Reviewed in the United States on February 20, 2026
A
Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 1
Good looks that betray a flawed locking mechanism
Style: Charging MagSafe Mount
I wanted to love the Spigen TapLock—its sleek design and promise of a secure, easy-to-use latch mechanism had me hopeful. At first, it felt solid, and the concept of a spin-to-lock system was clever. But after just a few weeks, the latch mechanism started failing. It wouldn’t adhere properly anymore, and the spin-to-lock feature became completely non-functional—no amount of spinning tightens the lock. Fixing it? Near impossible. The design buries the mechanism in a way that makes repairs a nightmare, and there’s no clear way to realign or replace parts without breaking it further. It’s a shame because the build quality isn’t terrible otherwise, but this critical flaw tanks it. One star—looks good, works briefly, then betrays you. The charge speed is pretty good.
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Reviewed in the United States on March 6, 2025
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mrnyknicks
Massapequa, US
★★★★★ 5
Good product
Style: Charging MagSafe Mount
Great product. It allows my iPhone 15 pro to sit at the right angle so that it is not completely behind steering wheel. I like that it doesn’t use a glue base to secure to monitor. I have taken It off 3 times and it went back on well. The only negative I can find is that it’s a little bouncy or I should say more than I would like it to. I would recommend to a friend.
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Reviewed in the United States on February 12, 2025

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