SKU: 71281331142

Holley Ultra Lo-Ram Manifold Kit Single Injector- Black - GM LS3/L92 300-680BK

Sale price$494.98 Regular price$549.98
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Description

Holley Ultra Lo-Ram Manifold Kit Single Injector- Black - GM LS3/L92 300-680BKUltra Lo Ram Manifold Kit LS3 Black Finish Features: Designed for GM LS Gen III and IV engines equipped with GM LS3 L92 cylinder heads? Engineered for forced induction (supercharged or turbocharged) engine applications with peak power at 7000 8000 rpm depending on the application. Low height to fit under a stock or mildly modified hood in the front configuration Front entry plenum flange allows design & fabrication of special throttle body adapters or

Ultra Lo-Ram Manifold Kit - LS3 Black Finish


Features:

  • Designed for GM LS Gen III and IV engines equipped with GM LS3/L92 cylinder heads?
  • Engineered for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application.
  • Low height to fit under a stock or mildly modified hood in the front configuration
  • Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installations
  • Clears C6 Corvette cowls and hoods without modification
  • Available with single or dual injector provisions and a burst panel flange.
  • High volume fuel rails for eight and sixteen injector configurations. Mounting hardware included with 3/4-16 O-ring ports (8 AN)
  • Billet options for the top and throttle body adapters are available seperately.

Specs:

Basic Operating RPM Range 3500-8000 RPM
Brand Holley EFI
Burst Panel Compatible Yes
Category Filter Intake Manifolds
Clearance Category Intake Manifolds
Color Black
Construction Cast
EGR Port No
Emission Code 3
Engine GM LS3/L92
Finish Black
Flange Style EFI
Front Height 6.86" height with throttle body adapter
Front Maximum Height 6.86 IN
Fuel System Type EFI
Grade Type Performance
Injector Quantity Single
Inlet Location Front
Intake Port Gasket(s) Included No
Manifold Type Ultra Lo-Ram
Material Aluminum
Nitrous Bung(s) Included No
Plenum Finish Black
Product Type Intake Manifold
Recommended Use Forced Induction
Removable Runners No
RPM Power Band 3500-8000 RPM
Sale Category Air and Fuel Delivery
Single Or Dual Plane Type Single Plane
Throttle Body Bore Diameter 105 MM
Throttle Body Included No
Warning California Proposition 65
Warranty Limited 90 Day

Application:

Year Make Model Submodel
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71281331142

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Danyel Myers
Carnegie, US
★★★★★ 5
Nice fit
Color: Blue Green, Size: Small, Color: Blue Green, Size: Small
❤️❤️❤️❤️
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Reviewed in the United States on May 2, 2026
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patrick
Dallas, US
★★★★★ 5
From
Color: Dark Green, Size: Large
He looks like a very nice quality. Just the color did not match his girlfriend's dress.So we are going with an all black one
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Reviewed in the United States on April 27, 2026
J
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Janielle Rencher
Fort Morgan, US
★★★★★ 5
Buy it!
Color: Blue Green, Size: Medium, Color: Blue Green, Size: Medium
Bought this as my nephew’s graduation suit and it fit perfectly. Great quality and the color was exactly like the photos. He wore a size medium
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Reviewed in the United States on May 30, 2026
A
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Alesia
Houston, US
★★★★★ 4
Nice but a different shade of purple than shown
Color: Light Purple, Size: Large, Color: Light Purple, Size: Large
Nice tux but not the color shown. It’s a really hard color to match. It’s more of a magenta-purplish-orchid color. Lolz we made it work, but just not the color intended
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Reviewed in the United States on March 29, 2026
K
Verified Purchase
Karen Freeman
Lake Worth, US
★★★★★ 5
Love them!
Color: Light Purple, Size: X-Large, Color: Light Purple, Size: X-Large
These looked awesome at the wedding my husband was a part of!!
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Reviewed in the United States on May 29, 2026

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