SKU: 3104044412

Holley 300-122 LS HI-Ram EFI Manifold

Sale price$517.48 Regular price$574.98
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Holley 300-122 LS HI-Ram EFI ManifoldLS1 2 6 HI RAM IM, EFI, 92MM LS TB Overview The Holley GM LS1 LS2 LS6 Modular Hi Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet metal for high performance applications where induction system height is not limited. Coupling this Hi Ram intake with the high flowing LS1 LS2 LS6 style cylinder heads has outstanding potential for N A and forced induction applications at a budget minded cost. Aggressive, bold, race

LS1/2/6 HI-RAM IM, EFI, 92MM LS TB

Overview

The Holley GM LS1/LS2/LS6 Modular Hi-Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet-metal for high-performance applications where induction system height is not limited. Coupling this Hi-Ram intake with the high flowing LS1/LS2/LS6 style cylinder heads has outstanding potential for N/A and forced induction applications at a budget-minded cost. Aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, street-rod applications and more!  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.  Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations  EFI fuel rails are machined for -8AN O-ring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi-Ram kits.  Cast aluminum construction.  Intended for use on N/A or forced induction engines in the 6.0 to 7.0+ liter range, max power at 7000-8000+RPM.

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.
  • Port Size – 2.49” Height x 1.21” Wide
  • 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

Application

  • 1953-2019 Chevrolet Corvette
  • 1964-2019 Pontiac GTO
  • 1966-2019 Chevrolet Camarro

Specs

Brand Holley EFI
Color Aluminum
Construction Cast
Emission Code 3
Engine GM LS1/LS2/LS6
Finish Satin
Flange Style EFI
Front Height 12.32 inch
Fuel System Type EFI
Manifold Type Hi-Ram
Product Type Manifold
Rear Height 11.00 inch
RPM Power Band 1500-7000
Warranty Limited 90 Day
Part Number 300-122
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: 3104044412

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 673 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jessica Reviere
Houston, US
★★★★★ 4
Worked for me
Size: 2 Fl Oz (Pack of 1), Style: Seed Oil
Been taking this for a year now..I usually get sick a few times a year but didn't even catch a cold last winter. So this must be doing great for my immune system..the taste is a little bit harsh but after months of taking it the taste really dosent bother me anymore. I gave it a four because I originally got it for energy but I didn't really see improvement in that area but that could have just been something else off with me. Definitely will keep buying this
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 9, 2025
S
Verified Purchase
Sr
Chelsea, US
★★★★★ 5
So versatile
Size: 2 Fl Oz (Pack of 1), Style: Seed Oil
I can't express how much I love this tooth pain? Right on the tooth dry skin? Slather on as a carrier oil with castor oil no tanning oil? Put it on tan in 30 mins no burn joint pain? take twice a day I can't live with out this oil! it's honestly a god send thank you so much guru nanda been using for 3 years consistently for everything
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
T
Verified Purchase
Tiffany from Texas
Dallas, US
★★★★★ 5
Quality
Size: 2 Fl Oz (Pack of 1), Style: Seed Oil
Great benefits and great quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 3
Bad taste
Size: 2 Fl Oz (Pack of 1), Style: Seed Oil
Ok but doesn't taste good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
C
Verified Purchase
Chucky
Boise, US
★★★★★ 5
Health
Size: 2 Fl Oz (Pack of 1), Style: Seed Oil
I recently started incorporating GuruNanda's Black Seed Oil into my daily routine, and I'm absolutely thrilled with the results! As someone who values natural remedies and holistic health practices, I've been searching for a high-quality black seed oil, and GuruNanda delivers exactly what I was looking for. First and foremost, the cold-pressed extraction method ensures that all the potent nutrients and compounds found in nigella sativa seeds are preserved, providing maximum benefits for my health and wellness. I appreciate knowing that I'm getting a pure and unadulterated product without any added fillers or artificial ingredients. One of the things I love most about this black seed oil is its versatility. Not only can it be taken orally for its numerous health benefits, but it can also be used topically for skincare and haircare purposes. I've been adding a few drops to my morning smoothies or salads for an added boost of nutrition, and I've noticed improvements in my overall well-being, including increased energy levels and a stronger immune system. Additionally, I've been using GuruNanda's Black Seed Oil as part of my skincare routine, and the results have been phenomenal. Its anti-inflammatory and antioxidant properties have helped to reduce redness and irritation, leaving my skin looking and feeling smoother and more radiant than ever before. Overall, I can't recommend GuruNanda's Black Seed Oil highly enough. It's a pure, potent, and multipurpose product that has quickly become a staple in my daily regimen. Whether you're looking to support your immune system, improve your skin health, or enhance your overall well-being, this black seed oil is definitely worth trying.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2024

recommand products