Engine Kits

MSD High Energy Coil
MSD Ignition

MSD High Energy Coil

Part #: 8225
List Price: $176.70
Our Price: $80.32
You Save: $96.38

Availability: In Stock

HEI owners now have a choice to replace their stock coil with the MSD High Energy Unitized Coil for GM HEI Distributors. This new coil is a direct replacement of the stock coil and offers increased spark energy when used with the MSD HEI Module, PN 8364. The coil features special low inductance, high temperature windings which charge faster to give you increased spark energy at higher rpm. The Premium epoxy filled coonstruction is designed to withstand harsh race applications as well as the wear and tear that daily usage dishes out and still deliver more spark energy to the spark plugs.


Primary Resistance:  0.6 ohms
Secondary Resistance:  8.9K ohms

Maximum Voltage:

 42,000 volts
Inductance:  3.5 mH
Turns Ratio:  70:1
Peak Current:  200 mA
Spark Duration:  200 Us
Tested with HEI Module, PN 8364

Ballast Resistor Included No
Brand MSD Ignition
Coil Color Black
Coil Internal Construction Epoxy
Coil Shape Square
Coil Style In-cap
Coil Wire Attachment HEI in-cap
Coil Wire Included No
Height (in) 4.000 in.
Inductance 3.5 mH
Length (in) 4.000 in.
Maximum Voltage 42,000 V
Mounting Bracket Included No
Part Type Ignition Coils
Peak Current 200 mA
Primary Resistance 0.600 ohms
Product Line MSD HEI Coils
Quantity Sold individually.
Secondary Resistance 8.9K ohms
Spark Duration 200 uS
Turns Ratio 70:1
Width (in) 3.000 in.