R45TS AC Delco ignition spark plug with resistor. Ships in AC Delco box. Sold individually.
Specifications:
Gap Size: 0.044"
Hex Size: 5/8"
Manufacturer Heat Range: 5
Approximate Resistor Value: 2-12k ohms
Seat Type: Tapered
Reach: 0.43"
Fits the following Chevrolet vehicles:
Bel Air 1970-81
Biscayne 1970-72
Caprice 1970-92
Impala 1970-85
Kingswood 1970-72