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Description
For Gen Iii And Iv Ls 6.56-Inch 12-1X Crank Kit, Ls, Hall Effect-556-176Upgrading 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
4.7 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Best pillow for my neck pain.
Number of Items: 1
I've tried so so many pillows to relieve my neck pain at night and this one is the first pillow that has actually worked. I was skeptical at first as this pillow is heavy and dense but one night and I was hooked. I couldn't believe I found a pillow that actually not only was comfortable but also relieved my neck strain. It's worth the cost to now be able to wake up without pain.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Tempur-Cloud Pillow
Number of Items: 1
My daughter has been struggling to find a good pillow that does not hurt her ears. She is a tummy sleeper, as am I. I have also been struggling to find the perfect pillow. I heard about Tempur pillows and thought it a good idea to buy my daughter a pillow for her birthday. It arrived last night. She tried it out during the night. When she woke up this morning, the first thing she said was that the pillow is amazing. It was a good night for her. She said it felt like sleeping on a marshmallow - soft enough to not hurt her ears but firm enough to support her neck. The pillow is very comfortable. 😊
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Reviewed in the United States on January 29, 2026
★★★★★ 3
Just ok
Number of Items: 1
This pillow flattens so much I’m not sure if it’s a legit tempur pedic or not. I bought one previously from Tempur Pedic store and the quality is better plus is more supportive. This one is meh . I gave it to my husband, he doesn’t care
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Get one but use it on a medium firm mattress, not a firm one.
Number of Items: 1
You need a mattress that is medium firmness to use this wonderful pillow. It gives perfect neck support and I can sleep on all 4 sides with it. My neck/head pain quit first night used it. On a firm mattress it feels too hard and awkwardly cradle l es my head.
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Great Pillows
Number of Items: 2
Got the 2pk, while these are probably not worth $65/pillow, they are definitely comfortable and I had no issues sleeping on it. Much better than the memory foam pillows from Walmart.
Could be a bit bigger and denser on the foam, but otherwise its perfect.
Pair with nylon cover for better cooling.
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Reviewed in the United States on May 6, 2026