800.345.4545
Unrivaled Customer Service
And Expert Tech Advice!  
FREE SHIPPING!
Same Day Shipping Before 11 PM ET
0
My Cart
0
$0.00
Shop By Vehicle
Shop By
Category
Close Menu
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories


Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

Holley EFI Hi-Ram Intake For LS1/LS2/LS6 Cathedral Port

Holley 300-122BK

510-300-122BK

made in usa
jegs shipping
FREE Shipping
Ships
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
Holley EFI Hi-Ram Intake For LS1/LS2/LS6 Cathedral Port $780.95
EFI Hi-Ram Intake
  • For LS1/LS2/LS6 Cathedral Port
  • Designed for use with 1 x 92mm GM LS Throttle Body, which is sold separately
  • Longitudinal Mount Plenum Top
  • Black Ceramic Coated Finish

  • Holley 300-122BK Details

    LS Modular Hi-Ram Intake

    Specs:
  • 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 - 6.58'', As-Cast Runner Cross-Sectional Area - Tapered 4.25 in² to 2.53 in²

  • Specifications:

    RPM Range
    1500-7000
    Number Of Carbs
    None, For Fuel Injection
    Emission
    Without EGR
    Cylinder Head Type
    Standard
    Usage
    Street/Strip
    Position
    Lower
    Engine Make/Size
    Chevy LS1/2/6
    Cylinder Head Type
    Cathedral Port
    Manufacturer's Part Number:
    300-122BK

    Make Your Bad Intentions Known!

    With the aggressive, race-bred style of the Holley GM LS Modular Hi-Ram Intake Manifold there is no hiding what you intend to do! This cast aluminum intake has been designed to be an alternative budget-minded solution to fabricated sheet-metal intakes on extreme performance engines. Intended for use where hood clearance is not a factor this intake features straight 6-1/2'' long runners with an overall height of just over 11'' to produce max power on naturally aspirated or forced induction engines using high flowing cylinder heads at 7,000 to 8,000 RPM! With a modular base design that allows you to use carbureted or EFI systems and choose or fabricate your choice of top plates the Hi-Ram LS intake is perfect for any LS powered drag race, muscle car, marine, off-road, sandrail, pulling truck or street-rod application!

    Specific Dimensions
  • Height (Carbureted or EFI, 2x4V Top Mount & Blank) - 11.08'' to the lifter valley cover flange on engine block
  • Base Plenum Top Mounting Flange Height - 8.42'' to the lifter valley cover flange on engine block
  • Port Size - 2.49'' Height x 1.21'' Wide
  • Mounting Flange Gasket Type - Standard Molded O-Ring
  • Plenum Top Gasket Type - 3/32'' Round O-ring Cord
  • Runner Length - 6.50'', As-Cast Runner Cross-Sectional Area - Tapered 4.25'' to 2.77''
  • 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

    Click Here for High-Ram EFI Intake Dimensions

    Click Here for LS Engine Intake Port Types and Dimensions

  • Does Holley 300-122BK fit your vehicle?

    Narrow Results

    1998 CHEVROLET CORVETTE

    • Fitment_Note: RPM Power Band 1500-7000
    • EngineType: ALL
    • SubModel: INDIANAPOLIS 500 PACE CAR

    2001-2004 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: Z06

    1999-2002 CHEVROLET CAMARO

    • Fitment_Note: RPM Power Band 1500-7000
    • Liter: 5.7
    • Aspiration: N
    • SubModel: Z28
    • Engine Vin: G
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998-2002 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: FORMULA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998-2001 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: G
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2003 CHEVROLET CORVETTE

    • Fitment_Note: RPM Power Band 1500-7000
    • EngineType: ALL
    • SubModel: 50TH ANNIVERSARY EDITION

    1998-2002 CHEVROLET CAMARO

    • Fitment_Note: RPM Power Band 1500-7000
    • Liter: 5.7
    • SubModel: Z28 SS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998 CHEVROLET CAMARO

    • Fitment_Note: RPM Power Band 1500-7000
    • Liter: 5.7
    • SubModel: Z28
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2005-2007 CHEVROLET CORVETTE

    • CC: 5967
    • Fitment_Note: RPM Power Band 1500-7000
    • Liter: 6.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 364
    • EngineType: V8 ( 6.0 L / 364 )

    2002 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: TRANS AM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2004-2005 CADILLAC CTS

    • EngineType: ALL
    • SubModel: V

    2004 PONTIAC GTO

    • EngineType: ALL
    • SubModel: ALL

    1997-2004 CHEVROLET CORVETTE

    • Fitment_Note: RPM Power Band 1500-7000
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: G
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2003 CHEVROLET CORVETTE

    • Fitment_Note: RPM Power Band 1500-7000
    • EngineType: ALL
    • SubModel: 50TH ANNIVERSARY EDITION PACE CAR
    300-122BK is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Awesome intake Got this for our turbo LS project and it performs outstanding. Give great top end power and when you open the hood it don't look like a pancake sitting on top of the engine.
    Date published: 2016-08-17
    • y_2018, m_8, d_20, h_1
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_1
    • loc_en_US, sid_10001_10001_3123718, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs
    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations