Holley Hi-Ram Base, Big Block Chevy 300-961
SKU: 45428979962

Holley Hi-Ram Base, Big Block Chevy 300-961

Sale price$404.98 Regular price$449.98
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Description

Holley Hi-Ram Base, Big Block Chevy 300-961Hi Ram EFI Base for 1965 & later 396 502+ MKIV MKVI Big Block Chevy engines with standard intake flange rectangle port cylinder heads 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 &

Hi-Ram EFI Base for 1965 & later 396-502+ MKIV-MKVI Big Block Chevy engines with standard intake flange rectangle-port cylinder heads

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:

  • 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.
  • 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
  • The coolant outlet is a standard Chevy thermostat housing flange. and (2) 1/2 NPT and (1) 3/8 NPT coolant ports are provided.
  • Power Band: 1500-8000 RPM
  • Black anodized EFI fuel rails are machined for -10AN O-ring fittings and come included with these EFI Hi-Ram kits.
  • 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
  • 2.40? tall x 1.60? wide port flange openings, uses Mr. Gasket intake manifold gasket #5817

Specs:

Basic Operating RPM Range 1500-8000
Brand Holley
Carburetor Studs Included No
Category Intake Manifolds
CNC Ported No
Color Natural
Construction Cast
Cylinder Head Port Shape Rectangle
EGR Port No
Emission Code 3
Engine Chevy Big Block V8
Finish Natural
Fuel Injectors Included No
Fuel Rail(s) Included Yes
Fuel System Type EFI
Gasket Or Seal Included Yes
Grade Type Performance
Manifold Type Hi-Ram
Material Aluminum
Nitrous Bung(s) Included No
Plenum Finish Natural
Product Type Intake Manifold Base
Removable Runners No
Removable Top/Lid Yes
RPM Power Band 1500-8000
Single Or Dual Plane Type Single Plane
Throttle Body Included No
Type of Component Lower Manifold
Warning California Proposition 65
Warranty Limited 90 Day
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: 45428979962

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R
Verified Purchase
Rob Cardwell
Birmingham, US
★★★★★ 5
Works for a smaller area
Color: Black
Easy to assemble. Fast delivery
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
J
Verified Purchase
Joseph Mowery
Belleville, US
★★★★★ 3
Below expectation
Color: Black
Not quite what I was expecting but it can be used
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Reviewed in the United States on May 6, 2026
C
Verified Purchase
Christopher Atchison
Chelsea, US
★★★★★ 4
Good
Color: Grey
Works as it should, but one of the brackets on the leg broke while setting up. Super glue is holding it in just fine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 5, 2026
K
Verified Purchase
Kati M
Carnegie, US
★★★★★ 1
Not good for putting away daily
Color: Grey
This product may work of you are doing a full install, but is terrible for putting up and taking down daily. I have only had it 2 months and it is falling apart and will not stand straight.
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Reviewed in the United States on April 25, 2026
B
Verified Purchase
Bethany Lindsay
Battle Creek, US
★★★★★ 5
Privacy at ease!
Color: Black, Color: Black
This is exactly what we needed for our large house and bedroom sharing with the kids. People need privacy and this can be tucked away when it isn't being used. Perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026

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