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Description
7-Inch 12-1X Crank Trigger Kit, SBC, Hall Effect 556-171For Small Block Chevrolet Features: Most accurate way to trigger your electronic fuel injection (EFI), can be installed as 12 1 or 12x1 Powerful magnets embedded in a 3 8 inch thick billet 6061 T6 aluminum trigger wheel1 3 wire Hall Effect Sensor that is not easily susceptible to EMI RFI Interference1 Engine specific kits include a direct bolt on billet aluminum pick up bracket1 Rigid mounting that will not flex and cause timing fluctuation1 Easy to
For Small Block Chevrolet
Features:
- Most accurate way to trigger your electronic fuel injection (EFI), can be installed as 12-1 or 12x1
- Powerful magnets embedded in a 3/8-inch thick billet 6061-T6 aluminum trigger wheel1
- 3-wire Hall-Effect Sensor that is not easily susceptible to EMI/RFI Interference1
- Engine specific kits include a direct bolt-on billet aluminum pick up bracket1
- Rigid mounting that will not flex and cause timing fluctuation1
- Easy to install much like traditional MSD Crank Trigger Kits 1
- Included installation instructions cover mechanical setup and provide step-by-step Holley EFI Software Setup1
Specs:
| Brand | Holley EFI |
|---|---|
| Category Filter | Fuel Injection - EFI |
| Clearance Category | Fuel Injection - EFI |
| Color | Silver |
| Diameter | 7-inch |
| Emission Code | 4 |
| Make | Small Block Chevrolet |
| Product Type | Crank Trigger Kit |
| Sensor Type | Hall Effect |
| Warning | California Proposition 65 |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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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]
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4.7 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Classy
Color: White Musical Goddess
Ugh it took so long to arrive but the quality is amazing. She is truly beautiful and looks expensive and fancy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2025
★★★★★ 5
Classic and expensive looking
Color: Vintage Green, Color: Vintage Green
Love this addition to our bust collection! The dark green really looks like old metal. A bit on the small size but true to specs. This is still a great looking bust but it's just not very large. I suggest 14-16 inches or over if you want something more substantial.
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Reviewed in the United States on October 27, 2023
★★★★★ 5
Dermatologist recommended it!
Size: 1.3 Ounce (Pack of 1)
This is my 11th order of this product. I originally started using it a few years ago when my dermatologist recommended it during a period of hormonal acne. I’ve been using it ever since. I have very sensitive skin that usually reacts to almost everything, either with redness or breakouts, but I can use this cream comfortably without any issues. It is very gentle, deeply hydrating, and has become a permanent part of my skincare routine. It is definitely worth the price. Even a small amount provides excellent hydration and it lasts a long time. I also love that it has a natural ingredients and is fragrance-free.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Game changer.
Size: 1.3 Ounce (Pack of 1)
I moved out to Arizona back in 2020 and shortly after that, I became a reptile. My skin would become flaky and peel and I tried several different types of facial creams and lotions with no luck. I went to a dermatologist who recommended CeraVe, and it did help my skin to an extent. It took care of the flakiness, but I would still see the dryness, especially when I looked in the mirror up close. I recently was on Google doing a search and came across this brand. I thought I’d give them a try and though I was skeptical, my skin has not looked this good in years. My skin feels smooth, hydrated and NO greasiness. I highly recommend this product.
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Reviewed in the United States on September 1, 2025
★★★★★ 5
Wonderfully effective and slightly bougie
Size: 1.3 Ounce (Pack of 1)
I have dry not so sensitive skin. I love the way this smells and feels on my tired parched face.
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Reviewed in the United States on October 25, 2025