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Summit Racing™ HEI Ignition Coils
Ignition Coil, HEI, In-Cap, E-Core, Square, Epoxy, Black, 48,000 V, Black Cover, Chevy, GM, Each
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Estimated Ship Date: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SUM-850720
Part Type:
Product Line:
Summit Racing Part Number:
SUM-850720
UPC:
190861221413
Coil Style:
In-cap
Primary Resistance:
0.300 ohms
Coil Internal Construction:
Epoxy
Coil Wire Attachment:
HEI in-cap
Coil Color:
Black
Maximum Voltage:
48,000 V
Turns Ratio:
130:1
Secondary Resistance:
10.20K ohms
Inductance:
3.00 mH
Mounting Bracket Included:
No
Coil Wire Included:
No
Ballast Resistor Included:
No
Coil Shape:
Square
Height (in.):
4.000 in.
Length (in.):
4.000 in.
Width (in.):
3.000 in.
Quantity:
Sold individually.
Notes:
Includes black coil cover. 10-15% increase in output over stock coil!
Summit Racing™ HEI Ignition Coils
Looking to get a faster start, quicker acceleration, and better high-rpm performance from your HEI distributor? You can have it all with Summit Racing™ HEI coils. They deliver increased spark energy--48,000 volts' worth--to give you quicker starts and better acceleration. And special low inductance, high-temperature coil windings charge the coil faster so you'll get increased spark energy at high rpms, too.
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