Holley EFI - Holley Ultra Lo-Ram Manifold Kit Single Injector- Black - GM LS3/L92 300-680BK
Type: Intake Manifold | Fits: GM
Available with single or dual injector provisions and a burst panel flange, the LS3 Ultra Lo-Ram intake manifold is designed for boosted combinations with hood clearance in mind.
The Holley LS3 Ultra Lo-Ram intake manifold kits are designed for GM LS Gen III and IV engines equipped with GM LS3/L92 cylinder heads. These intake manifolds will work with OE or aftermarket cylinder heads. The Lo-Ram intake manifolds are designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application. The front plenum flange has a 105 mm opening to work with throttle body part number 112-581 or similar models. The base intake manifold is designed with a lower overall height to fit under a stock or mildly modified hood in the front configuration. The LS3 Lo-Ram is constructed to provide a very low profile modular intake manifold suitable for fabrication of special throttle body adapters or inlet ducts for custom installations. Available with single or dual injector provisions and a burst panel flange options. The fuel rail kits come with two sets of brackets. A set for long (usually standard length) fuel injectors and a set for short (such as Pico, or LS7) fuel injectors.
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: Engine
- 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 Injectors Included: No
- Fuel Rail(s) Included: Yes
- Fuel System Type: EFI
- Gasket Or Seal Included: Yes
- 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
- Part Type: Engine Intake Manifold
- Plenum Finish: Black
- Product Type: Intake Manifold
- Recommended Use: Forced Induction
- Removable Runners: No
- RPM Power Band: 3500-8000 RPM
- Single Or Dual Plane Type: Single Plane
- Sub Category: Cylinder Block Components
- Throttle Body Bore Diameter: 105 MM
- Throttle Body Included: No
- Warranty: Limited 90 Day
Tech Resources:
Ultra Lo-Ram Base Intake Manifold Plenum Top Mounting Flange Height - 5.17" Front Feed Plenum Configuration w/105mm Throttle Body Adapter - 6.86"
Hurry Up! Only 54 items left in stock!
Copy link:
Share:
Shipping
We strive to provide fast and reliable shipping options for all our customers. For detailed information about our shipping rates, delivery times, and policies, please visit our Shipping Page.
Return Policies
Your satisfaction is important to us. If you wish to return an item or request a refund, please review the terms and conditions outlined in our Returns Policy.
Important Notices
- Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
