Holley EFI Dominator Flange Throttle Body
Type: Throttle Body
Holley's NEW EFI Throttle Bodies are unquestionably the BIGGEST BORE - MOST FEATURE LOADED units available on the market today. Holley went back to the drawing board and built the ultimate air valves for your hotrods power plant. The 2550 CFM Dominator Flange Throttle body will be at home on even the largest cubic inch engines. These throttle bodies are feature packed, showcasing roller bearing throttle shafts, non-contact magnetic TPS sensors, and index-able throttle leavers. Making these the ultimate throttle bodies for ease of installation and tuning. Regardless of whether you have a turbo, supercharger, or a big cam engine pumping massive gulps of air, Holley's throttle bodies are maximized for your application.
Features:
- Lightweight billet design (4500 bolt pattern)
- Dual throttle blades for maximum airflow
- Shafts ride on roller bearings for ultra-smooth throttle actuation
- Flows 2550 CFM
- Versions with and without supplemental injector provisions (4 injectors per TB and rails)
- Non-contact magnetic TPS sensor – Bringing Pro Stock and ARCA Technology to your ride!
Specs:
- Adjustable: Yes
- Billet Color: Clear
- Bolt Pattern: Dominator Flange
- Bore Diameter: 28.5 SI
- Brand: Holley EFI
- Category: Air and Fuel Delivery
- CFM: 2550
- Emission Code: 4
- Fuel Injectors Included: No
- Fuel System Type: EFI
- Gasket Or Seal Included: No
- Grade Type: Performance
- Height: 3 Inches
- Idle Air Control Motor Included: Yes
- Material: Billet Aluminum
- Mounting Hardware Included: No
- Part Type: Fuel Injection Throttle Body
- Product Type: Throttle Body
- Sub Category: Fuel Injection System and Related Components
- Throttle Body Finish: Polished
- Throttle Body Material: Billet Aluminum
- Throttle Body Spacer Included: No
- Throttle Bore: 25.8 Sq Inches
- Throttle Position Sensor Included: Yes
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Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - 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.
