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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
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Description
For Small Block Ford 6.56-Inch 12-1X Crank Kit, Sbf, Hall Effect-556-172Upgrading to an MSD Flying Magnet Crank 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
Upgrading to an MSD Flying Magnet Crank 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 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 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 Kits
- Included installation instructions cover mechanical setup and provide step-by-step Holley EFI Software Setup
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.5 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Gravity operatedd
Size: Gravity, Color: Black
Simple and best holder on the market. Dont waster time on anything with a button and cheap plastic.
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Reviewed in the United States on November 25, 2025
★★★★★ 1
Junk
Size: Gravity, Color: Black
Placed it in the vent and it does not let you move the vent. Took the phone out of holder and one of the knobs holding the phone came off. The phone keep turning while turning conors.
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Reviewed in the United States on November 22, 2024
★★★★★ 3
Not for some phones with cases
Size: Gravity, Color: Black
Phones with thick cases may not fit.
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Reviewed in the United States on January 26, 2025
★★★★★ 5
Surprisingly good
Size: Gravity, Color: Deep Space Grey
I bought a very old Lexus as a second backup car and as such, it doesn't have any of the amenities we are used to. This phone holder is surprisingly smartly designed. Every time I put my phone in it I'm impressed that it holds it in place.
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Reviewed in the United States on August 4, 2025
★★★★★ 5
Outstanding! 5 Stars for Mobility, Durability, Functionality and Ease of Use.
This little invention is outstanding! It holds phones of multiple sizes very securely in place without any bonding or sticky attachments that could damage your vehicle. Mobility is simple as it's easy to add and remove to any vehicle with air condition vents. Best of all, various size devices can be easily held in place with a quick squeeze of the side mounts and just as easily removable with a single press of a release button on the back side. The mount is also very strong and holds up to various temperatures. For example, in the summer it can become very hot in an enclosed vehicle and this mount holds up when other mounts tend to fail from over exposure to heat. The failure causes the joints or fittings to loosen, which will cause your device to slip from an intended position. Well, that is not a problem with this one. It has stood the test of time as I have used this mount for over a year in extreme environments. In the end, it appears that my family has come to like this product too. Ahem, my wife just took mine! So, I have returned to purchase another one for myself and two more for my daughters. Then I don't have to worry about my daughters taking mine either. Yes, I'm finally thinking ahead, so maybe you should think ahead and get additional copies for your family members. Either way, try one and you'll likely be back for more. It makes a great gift. I highly suggest this product to everyone who needs a mobile device mount for their vehicle.
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Reviewed in the United States on August 4, 2025