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Product Summary

EFI Fuel System Type, Hi-Ram Intake Manifold Type

  • Deigned to be a cost effective alternative to fabricated sheet-metal for high-performance applications
  • The aggressive, bold, race-bred styling will look great drag race, muscle car, marine, off-road, etc. applications
  • Base is engineered to be modular in configuration to accept a wide range of carbureted and EFI tops
  • 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

Rebates Available

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Key Specs

MFG. Part #300-117BK
BrandHolley
Intake Manifold TypeHi-Ram
RPM RangeIdle-8,000
Material TypeAluminum
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Need To Know

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Return Policy

Holley 300-117BK Details

The Holley GM LS3/L92 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 LS3/L92 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.

  • 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 92/102mm 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 - 6.50 , As-Cast Runner Cross-Sectional Area - Tapered 4.25 in² to 2.77 in²

Charts

Rebates

Holley Fuel Up Spring Savings Event 2026

Save 10% instantly on select products across the Holley family of performance brands during the annual Holley Fuel Up Spring Savings Event 2026. Instant rebate period has been extended and now runs from March 30, 2026 through April 19, 2026.

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Holley 300-117BK Specifications

KEY SPECS
MFG. Part #300-117BK
BrandHolley
Intake Manifold TypeHi-Ram
RPM RangeIdle-8,000
Material TypeAluminum
GENERAL
Fuel System TypeEFI
FinishAnodized
ColorBlack
EGRNo
Throttle Body Bore Size105mm
Intake Section IncludedComplete
Plenum MaterialAluminum
Plenum FinishPowdercoated
Throttle Body IncludedNo
Injectors IncludedNo
Aftermarket Fuel Rail RequiredNo
Fuel Rails IncludedYes
Overall Height12.32"
Runners IncludedYes
Runners RemovableNo
Supplemental Bosses Cast-InYes
Supplemental Bosses MachinedNo
Supplemental Boss Quantity8
Sold in QuantityEach
GTIN Code090127688892

Fitment

  • GM LSA

  • 6.2 Chevy LS V8

  • 6.2 Chevy LS V8

  • 6.2 Chevy LS V8

  • 6.2 Chevy LS V8

  • 6.2 Chevy LS V8

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