SKU: 42641670501

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

Sale price$503.08 Regular price$558.98
Save 10%

Pay in installments of $139.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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: 42641670501

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 10 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kkellz
New York, US
★★★★★ 5
Quality, and comfy
True size, gives you the right support. Comfortable material and fits perfectly. Would recommend the value for the money is worth it.. good quality.. variety colors..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
K
Verified Purchase
Kindle Customer
Lake Worth, US
★★★★★ 5
Comfortable
Size: Medium, Color: Set-unbl
Soooo comfy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
J
Verified Purchase
Jessica Martin
Whiting, US
★★★★★ 4
Could be longer in the legs but that’s my preference
Size: X-Large, Color: Set-un2
Very comfortable just wish they were a little longer
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2025
T
Verified Purchase
toolittletravel
Lowell, US
★★★★★ 5
Perfect for my body and fit preference, plus COTTON
Size: X-Large, Color: Set-unbl
Update: Different color packs fit differently. I've purchased two packages, one all-black and one black with the colorful waistbands. The all-black are a little smaller. IMO the all-black run a half to a full size small, and the black with the colorful waistbands run true to size. Listen, all of our bodies and preferences are so different, but these are perfect for my body and my fit preference. They hit at my bellybutton and I would describe the length as short-boyshorts, but not hipsters. Most importantly, they're cotton, which my body reacts much better to these days.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
T
Verified Purchase
Tat Phoenix
Alexandria, US
★★★★★ 5
Good quality
Size: Medium, Color: Set-unbl
They fit perfectly and seem well made
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026

recommand products