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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
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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.
- 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
4.3 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 4
Toy broke in two
Color: Blue
This is a great toy for aggressive chewers. My reason for 3 stars is my dog dropped it on the tile floor the second day she had it and it broke in two. Not real happy with that.
Update:
The seller has been proactive and accepting of the very minor issue of the toy breaking. Responded within 24 hours and issued a refund. Because of their response I am changing my review to 4 stars.
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Reviewed in the United States on June 23, 2025
★★★★★ 5
Great dog toy
Color: Pink Blue
These are great my dog loves them!!
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Reviewed in the United States on May 14, 2026
★★★★★ 1
Waste of money
Color: Green
Didn't last long with my pup. Only two weeks. Such a waste of money.
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Reviewed in the United States on June 9, 2026
★★★★★ 5
Durable
Color: Green
Its bot as pretty as the day we got it but it has held up pretty well
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Reviewed in the United States on May 11, 2026
★★★★★ 3
Surviving a 8 month old heavy chewer
Color: Blue, Color: Blue
My dog is OK with it but doesn't like it as good as the whale indestructible toy I got her previously. She chews on it a little while and quits. She acts almost like it makes her nauseated. Idk though....
It gets very very sharp! Be careful grabbing it after they've chewed it.
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Reviewed in the United States on May 14, 2026