SKU: 39238282146

Holley Hi Ram Chev LS1 / LS2 / LS6 V8 Cathedral Port EFI Manifold # HO300-122

Sale price$787.50 Regular price$875.00
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Description

Holley Hi Ram Chev LS1 / LS2 / LS6 V8 Cathedral Port EFI Manifold # HO300-122Holley Hi Ram Chev LS1 LS2 LS6 V8 Cathedral Port EFI Manifold # HO300 122 Intake Manifold, EFI Hi Ram, Aluminum, Natural, Chevy, Engine Block Style: Stock OEM standard deck Cylinder Head Configuration: Cathedral Port Injection Style: Multi port Basic Operating RPM Range: Idle 8,000 Intake Section Included: Complete EGR: No Injectors Included: No Multi Port Fuel Rails Included: Yes Aftermarket Fuel Rail Required: Yes Throttle Body Included: No Throttle

Holley Hi Ram Chev LS1 / LS2 / LS6 V8 Cathedral Port EFI Manifold # HO300-122
Intake Manifold, EFI Hi-Ram, Aluminum, Natural, Chevy,
Engine Block Style:Stock/OEM standard deck
Cylinder Head Configuration:Cathedral Port
Injection Style:Multi-port
Basic Operating RPM Range:Idle-8,000
Intake Section Included:Complete
EGR:No
Injectors Included:No
Multi-Port Fuel Rails Included:Yes
Aftermarket Fuel Rail Required:Yes
Throttle Body Included:No
Throttle Body Bore Size:92mm
Supplemental Bosses Cast-In:No
Supplemental Bosses Machined:No
Runners Included:Yes
Runners Removable:No
Plenum Material:Aluminum
Base Material:Aluminum
Quantity:Sold individually.
Notes:With cathedral port heads only. Fuel rails are machined for -8 AN O-ring male fittings.Holley EFI LS Hi-Ram intake manifolds are designed for your high performance race engine. Big cube and high-rev applications without height limitations are the intent for these manifolds. The modular design of these Holley Hi-Ram intake manifolds offers a runner length and as-cast tapered cross-section design that works for a wide range of engine configurations. The included fuel rails are machined for -8 AN O-ring fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system. Build maximum performance with EFI LS Hi-Ram intake manifolds from Holley.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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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: 39238282146

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Robert A. Bertsche
West Palm Beach, US
★★★★★ 5
Essay to assemble
Color: Grey
Very nice. Did the job the way I wanted.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
K
Verified Purchase
Kevin
Port Orchard, US
★★★★★ 2
Low budget option
Color: Grey
Budget low quality if thats what youre looking for
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Reviewed in the United States on April 27, 2026
K
Verified Purchase
Kelly W.
Grantham, US
★★★★★ 3
Hard to assemble
Color: Grey
This is extremely hard to put together, but once its together it is pretty good. You will need to secure it to something. It falls over.
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Reviewed in the United States on March 6, 2026
M
Verified Purchase
Michael G.
Draper, US
★★★★★ 5
Works well!
Color: Grey
Works great!
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Reviewed in the United States on May 4, 2026
R
Verified Purchase
Randy Deasy
Whiting, US
★★★★★ 5
Not to thick or thin well made
Size: Medium, Color: (601) Bittersweet Pink / Stone / Stone
I bought pink so as not to lose when doing laundry with my daughter who steels all socks lol!
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Reviewed in the United States on May 8, 2026

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