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  • Holley Hi-Ram EFI Intake Manifold | GM LS1/LS2/LS6 w/ 92mm Throttle Body (300-122)
  • Holley Hi-Ram EFI Intake Manifold | GM LS1/LS2/LS6 w/ 92mm Throttle Body (300-122)
  • Holley Hi-Ram EFI Intake Manifold | GM LS1/LS2/LS6 w/ 92mm Throttle Body (300-122)
  • Holley Hi-Ram EFI Intake Manifold | GM LS1/LS2/LS6 w/ 92mm Throttle Body (300-122)

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    Holley Hi-Ram EFI Intake Manifold | GM LS1/LS2/LS6 w/ 92mm Throttle Body

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    GM LS1/LS2/LS6 Hi-Ram Intake Manifold by Holley

    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.

    Features

    • Base Plenum Top Mounting Flange Height – 8.42” to the lifter valley cover flange on engine block.
    • Total Height with 92/105mm 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
    • 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.

    Please Note: The front and rear height measurements listed in the Specs section are referencing the overall height with the top plate installed. Please see the diagrams in the product images for other dimensions.

    Applications

    • GM LS1, LS2 & LS6 w/ 92mm Throttle Body

    Specifications

    • Construction: Cast
    • Emission Code: 3
    • Engine: GM LS1/LS2/LS6
    • Finish: Satin or Black Ceramic
    • Flange Style: EFI
    • Front Height: 12.32"
    • Fuel System Type: EFI
    • Manifold Type: Hi-Ram
    • Rear Height: 11.00"
    • RPM Power Band: 1500-7000

    What's In The Box?

    • 1 - Hi-Ram Intake Manifold
    • 2 - EFI Fuel Rails

    References

    Warranty

    • Holley Performance Products warrants its new products to be free from defects in material and workmanship for a period of 90 days from date of purchase.

    GM LS1/LS2/LS6 Hi-Ram Intake Manifold by Holley

    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.

    Features

    • Base Plenum Top Mounting Flange Height – 8.42” to the lifter valley cover flange on engine block.
    • Total Height with 92/105mm 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
    • 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.

    Please Note: The front and rear height measurements listed in the Specs section are referencing the overall height with the top plate installed. Please see the diagrams in the product images for other dimensions.

    Applications

    • GM LS1, LS2 & LS6 w/ 92mm Throttle Body

    Specifications

    • Construction: Cast
    • Emission Code: 3
    • Engine: GM LS1/LS2/LS6
    • Finish: Satin or Black Ceramic
    • Flange Style: EFI
    • Front Height: 12.32"
    • Fuel System Type: EFI
    • Manifold Type: Hi-Ram
    • Rear Height: 11.00"
    • RPM Power Band: 1500-7000

    What's In The Box?

    • 1 - Hi-Ram Intake Manifold
    • 2 - EFI Fuel Rails

    References

    Warranty

    • Holley Performance Products warrants its new products to be free from defects in material and workmanship for a period of 90 days from date of purchase.

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    MAP Limited Lifetime Warranty

    1.) All MAPerformance in-house fabricated parts include a Limited Lifetime Warranty for the Original Purchaser. This warranty only applies to the original purchaser and is non-transferrable. If the product fails it would need to be determined by MAPerformance that it is due to manufacturing defects in materials or workmanship.

    2.) This does not cover normal wear and tear. Improper use, modification, or abuse voids this warranty. MAPerformance will not be held responsible for additional costs due to the failure of a product (cost of sale, towing, labor, etc.). Warranty claims must be submitted to MAPerformance for review.

    3.) You must create a support ticket to acquire your return authorization number prior to returning the product.

    4.) Warranty claims will not be honored if the product was not purchased through an approved dealer.

    For warranty evaluation please create a support ticket via this form here.

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