The Holley Smart Coil Coil-Near-Plug V8 Kit converts an ignition system to Coil-Near-Plug, giving individual cylinder timing control and eliminating spark issues tied to stock coils. It includes two terminated sub-harnesses and eight Holley Smart Coils with 3 ft. of wiring loom for a clean, professional installation.
Specifications:
- Peak Voltage: 44,000 Volts
- Peak Output: 102 mJ
- Maximum Battery Voltage: 17.0 Volts
- Ignition Wire Terminal Type: HEI Style Tower
- Mounting Bolt Pattern: 74mm
- Overall Length: 4.3"
- Width: 3.6"
- Height: 1.86"
- Kit Contents: 2 terminated sub-harnesses, 8 Holley Smart Coils, 3 ft. wiring loom
- Part Number: 556-127
The supplied connectors and pins are "pull to seat" — insert the wire through the connector from the back, crimp the pin, and pull it back into the connector for assembly, using proper crimping tools. Upgrading a non-C-N-P main harness requires the Holley Universal Coil-On-Plug Harness, P/N 558-307, to complete installation.
Compliance: This part is legal for sale and use on Racing Use Only Vehicles — competition vehicles that are not registered and never operated on the street. It is against the law to install this part on an Emissions Controlled Vehicle (1966-and-newer California-certified or 1968-and-newer federally certified vehicles).
FAQ
What does the 556-127 kit include?
Two terminated sub-harnesses, eight Holley Smart Coils, and 3 ft. of wiring loom for a Coil-Near-Plug conversion.
Do I need any other harness to complete installation?
If upgrading a non-C-N-P main harness, the Holley Universal Coil-On-Plug Harness (P/N 558-307) is required to complete the installation.
What is the peak voltage and output of these coils?
44,000 volts peak voltage with 102 mJ peak output, up to a maximum battery voltage of 17.0 volts.
Is this kit legal for street use?
No. It is legal for sale and use on Racing Use Only vehicles that are not registered and never operated on the street; installing it on an emissions-controlled vehicle is against the law.
