5.0 · 3 reviews
SKU: 300-122BK

LS Hi-Ram EFI Manifold - Black GM LS1/LS2/LS6

$1,300.00
FREE delivery
Description

ABOUT THIS PRODUCT

The base is designed to be modular in configuration to accept a wide range of carbureted and EFI tops and to be attractive to builders and fabricators as the foundation for custom induction systems.

Product Features:
  • Base Plenum Top Mounting Flange Height - 8.42" to the lifter valley cover flange on engine block.
  • Total Height with 92/102mm EFI Plenum Top - 12.32" to the lifter valley cover flange on engine block.
  • Runner Length - 6.58", As-Cast Runner Cross-Sectional Area - Tapered 4.25 in² to 2.53 in²
  • Mounting Flange Gasket Type - Standard LS3 Molded O-Ring
  • Plenum Top Gasket Type - 3/32" Round O-ring Cord
  • Throttle Body Flange Location, with 92mm EFI Plenum Top : Height - 8.42" (from engine block lifter valley cover flange), Longitudinal Location - 3.84" (forward from engine block front flange), Angle - 25 deg. (down from vertical)
  • Runner Length - 6.58", As-Cast Runner Cross-Sectional Area - Tapered 4.25 in² to 2.53 in²
Specifications
Brand
Holley EFI (770)
SKU
300-122BK
Product type
Automotive
Guides & Resources
User Guide
Returns Policy
Shipping Information

Free shipping on all orders. Most items ship next business day after your order is placed.

Returns Policy

Returns are accepted when the product is in its original, unopened container. Contact us if you have questions about your order.

View full returns policy

Customer Reviews

5.0

Based on 3 reviews

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R
Riley N. Verified Buyer
06/08/2025

No complaints

Quick delivery and the product exceeded my expectations.

M
Maria K. Verified Buyer
08/17/2025

Would buy again

Does what it is supposed to do. Happy with this purchase.

T
Ted R. Verified Buyer
02/03/2025

Works perfectly

Setup was simple and it has worked reliably since day one.

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