6.56-Inch 12-1x Crank Trigger Wheel
Type: Crank Trigger Wheel
Upgrading to an MSD Flying Magnet Crank Trigger Kit will deliver the precise and reliable signal that a high performance engine requires. This kit gives you the ability to control timing electronically through a Holley EFI ECU (or other standalone engine management system / ignition controller). At the heart of the kit is the 3-wire Hall-Effect Sensor that is easier to set up, less susceptible to EMI/RFI interference/noise, and less likely to have false signals than other methods (Distributors and VR Magnetic Sensors). In addition, they are less prone to mechanical failure since there are no wear parts. With the included high quality timing pointer and the use of a direct bolt-on, degreed balancer (see below list for recommendations), you'll be able to adjust timing in the precise increments required for your engine.
• Coyote 556-173
We recommend using ATI 918047-MSD but will also work with 918047N and 918047NA
• LS 8 inch 556-174
Designed to work directly with ATI 917302, 918852, 917264 or 917242
• LS 7.28 inch 556-175
Designed to work directly with ATI 917777, 917211 or 917234
• LS 6.56 inch 556-176
Designed to work directly with ATI 917776 or 917215
Features:
- Most accurate way to trigger your electronic fuel injection (EFI), can be installed as 12-1 or 12x
- Powerful magnets embedded in a 3/8-inch thick billet 6061-T6 aluminum trigger wheel
- 3-wire Hall-Effect Sensor that is not easily susceptible to EMI/RFI Interference
- Engine specific kits include a direct bolt-on billet aluminum pick up bracket
- Rigid mounting that will not flex and cause timing fluctuation
- Easy to install much like traditional MSD Crank Trigger Kits
- Included installation instructions cover mechanical setup and provide step-by-step Holley EFI Software Setup
Specs:
- Brand: Holley EFI
- Category: Ignition
- Color: Silver
- Diameter: 6.56-inch
- Emission Code: 4
- Grade Type: Performance
- Make: Small Block Ford
- Material: Billet Aluminum
- Part Type: Ignition Crank Trigger Wheel
- Product Type: Crank Trigger Wheel
- Sensor Type: Hall Effect
- Sub Category: Sensors
- Thickness: 3/8 IN
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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.
