Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Holley Coil-Near-Plug Smart Ignition Coils 556-128KIT, BIG WIRE 8 CYLINDER SMART COIL KIT Do you need precision control over your ignition system? Would your combination benefit from Individual Cylinder Timing Control? Are you experiencing spark issues with your Stock Coils? Are you wanting to convert your Turbocharged Big Block Monstrosity to Coil Near Plug?! Problem solved, introducing the Holley EFI Big Wire C N P Kit containing everything you need to upgrade your ignition system to handle 5. 5+
KIT, BIG WIRE 8 CYLINDER SMART COIL KIT
Do you need precision control over your ignition system? Would your combination benefit from Individual Cylinder Timing Control? Are you experiencing spark issues with your Stock Coils? Are you wanting to convert your Turbocharged Big Block Monstrosity to Coil-Near-Plug?! Problem solved, introducing the Holley EFI Big-Wire C-N-P Kit containing everything you need to upgrade your ignition system to handle 5.5+ HP per Cubic Inch
Features:
- “Big Wire” Sub Harness- Pre wired with 12ga Power and Grounds, for optimal performance!
- Peak Voltage – 44,000 Volts
- Peak Output – 102 Mj
- Maximum Battery Voltage 17.0 Volts
- Upgrading a Non C-N-P Main Harness requires the Holley Universal Coil-On-Plug Harness, P/N 558-307 to complete the installation!
- Contains two Terminated Sub-Harnesses, and Eight Holley Smart Coils, 3 ft. of wiring loom for a professional appearing installation!
- Sub Harness features Fully Terminated Coil Connectors, a 7 Pin Metripak Connector used on several Holley EFI C-N-P Main Harnesses, and 3 loose wires for a quick installation!
Application
-
Universal
Specs
| Brand | Holley EFI |
|---|---|
| Emission Code | 4 |
| Height | 1.86" |
| Ignition Wire Terminal Type | HEI Style Tower |
| Mounting Bolt Pattern | 74mm |
| Overall Length | 4.3" |
| Product Type | Distrutorless Ignition - DIS - smart coil |
| Width | 3.6" |
| Part Number | 556-128 |
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 961 reviews
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Product Reviews
★★★★★ 5
Very nice suit, but too small
Size: X-Large, Color: Black
It's a very nice suit - but too small. Will purchase again in a larger size.
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Reviewed in the United States on June 1, 2026
★★★★★ 4
Good quality and cannot beat the value you get with a suit
Size: Medium, Color: Black
I recently purchased the WEEN CHARM Men's Suits Slim Fit for my son's homecoming and I must say, I am impressed with the quality and fit of this suit.
Firstly, the material used in this suit is of exceptional quality. The fabric feels soft and smooth, and it has a nice weight to it which gives it a luxurious feel. The suit doesn't feel cheap or flimsy at all.
The slim fit design is impeccable. It hugs my son's body in all the right places, giving him a sharp and stylish look. The suit is tailored to perfection and accentuates his physique beautifully.
I also appreciate the attention to detail in the craftsmanship. The stitching is neat and sturdy, and there were no loose threads or flaws that I could find. The suit looks like it was made with care and precision.
Additionally, the suit was surprisingly comfortable. My son didn't complain about any discomfort or restriction of movement throughout the evening, which is always a plus.
The only reason I haven't given it a five-star rating is because the suit did require some minor alterations for a perfect fit. Nonetheless, this is a small inconvenience considering the overall satisfaction we had with this purchase.
In conclusion, I highly recommend the WEEN CHARM Men's Suits Slim Fit. It is a stylish, well-made suit that will definitely make a statement at any formal event. My son looked dashing in it and received many compliments.
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Reviewed in the United States on July 8, 2023
★★★★★ 5
Fit like a glove and soft to the touch.
Size: Small, Color: Black
My son loved the suit. It was not itchy. The fabric was soft. He did not like the vest but it is because he normally wears baggy clothes. He did not want a slim fit suit but he ended feeling good in it. For the price you can't miss. He is 140 lbs and is 5'7". We used the sizing chart for reference and bought size small. The length and waist of the pants were perfect and the arms were just right.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Awesome value! Great fit!
Size: XX-Large, Color: Black
Complete men's suit for under $70!!! Crazy!! My husband is thrilled with this suit! We ordered a XXXL but it was a bit baggy. Ordered the double XL and it was perfect! Husband is 6'1, waist 38, broad chested. No adjustments or hemming needed! Love it!
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Reviewed in the United States on April 4, 2026
★★★★★ 5
I felt cute
Gorgeous. Little snug for the jacket for recommended size but I got 6 months to lose some stomach to fit better LOL I don't blame the jacket.
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Reviewed in the United States on April 7, 2026