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Instruction Sheets for Part Number HLY-300-122
Holley EFI LS Hi-Ram Intake Manifolds
Intake Manifold, EFI Hi-Ram, Cathedral Port, 92mm Bore, Aluminum, Natural, Chevy, Small Block LS, Each
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Estimated Ship Date: Monday 11/2/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
300-122
Part Type:
Product Line:
Summit Racing Part Number:
HLY-300-122
UPC:
090127681671
Cylinder Head Configuration:
Cathedral Port LS1/LS2/LS6
Fuel Injection Style:
Multi-port
Basic Operating RPM Range:
3,500-8,000
Intake Section Included:
Complete
Throttle Body Bore Size:
92mm
Engine Block Deck Height:
Standard deck
Injectors Included:
No
Multi-Port Fuel Rails Included:
Yes
EGR:
No
Aftermarket Fuel Rail Required:
Yes
Throttle Body Included:
No
Supplemental Bosses Cast-In:
No
Supplemental Bosses Machined:
No
Runners Included:
Yes
Runners Removable:
No
Plenum Material:
Aluminum
Plenum Finish:
Natural
Base Material:
Aluminum
Base Color:
Natural
Remanufactured:
No
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
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.
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