SKU: 39724032925

Holley Hi-Ram EFI Intake Manifold Kit - Big Block Chevy 300-963

Sale price$16662.15 Regular price$18513.50
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Description

Holley Hi-Ram EFI Intake Manifold Kit - Big Block Chevy 300-963Holley 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

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 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
  • 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
  • 300-961, 300-963, and 300-964 are designed for 1965 & later 396-502+ MKIV-MKVI standard 9.80Ó deck height Big Block Chevy engines with standard intake flange rectangle-port cylinder heads.
  • Uses drive by wire or cable actuated GM Gen IV LS 4-bolt throttle bodies
  • 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.
  • Plenum Top Gasket Type Ð 3/32Ó 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
  • 2.40Ó tall x 1.60Ó wide port flange openings, uses Mr. Gasket intake manifold gasket #5817
  • Throttle Cable Bracket is supplied in the kit

About Holley

Holley Performance Brands is the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, fuel injection, and fuel systems.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 39724032925

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LynneC
Grantham, US
★★★★★ 4
Good Book, not Parshall though
Format: Kindle
The author uses more Japanese terms than any similar book that I've read but uses western naming conventions for Japanese people. I don't quite know what to think. Good diagrams.
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Reviewed in the United States on December 12, 2025
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Robert K. B
Whiting, US
★★★★★ 5
Japanese mindset Coral Sea
Format: Kindle
This book gave me fresh insights to the Battle of the Coral Sea. I feel like I have an idea as to what was going through the Japanese minds. Well written. He make it easy to follow each step of the battle.
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Reviewed in the United States on April 19, 2026
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Christine
Grantham, US
★★★★★ 5
A Less Than Famous Battle
Format: Hardcover
Very thorough on a battle that was not as decisive as Midway.
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Reviewed in the United States on May 1, 2026
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john c
Houston, US
★★★★★ 5
Interesting front to back
Format: Hardcover
Really good book. A lot from the Japanese perspective. Plenty of facts but not so much as to be boring. Amazing how much was hit or miss back then. Or just plain luck.
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Reviewed in the United States on March 30, 2026
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Kuba Zywko
Natrona Heights, US
★★★★★ 5
An important book
Format: Kindle
A very good treatment of the subject matter, especially valuable as it mines the Japanese sources, which have largely been ignored by the Western historians. The narrative is clear and easy to follow & background detail gives important context into the psychological aspects of the events. Definitely recommended!
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Reviewed in the United States on December 14, 2025

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