The terminals are covered in black boots that protect the conductor from engine heat to ensure spark delivery.

The Street Fire Spark Plug Wires feature a low resistance conductor that's wrapped in a sleek and durable black sleeve.

Helically wound conductor suppresses electro and radio noise
Kevlar core combination for great strength and durability
Heavy Duty Terminals For Secure Connection
8mm silicone and synthetic jacket resists heat and abrasion
500 Ohms/ft. Resistance For Improved Spark Delivery And Power
Silicone Boots Protect Against High Exhaust Temps

Information:

Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations

Application Summary:

Year	Make/Model
1960-1971	Chrysler 300
1975-1978	Chrysler Cordoba
1960-1975	Chrysler Imperial
1960-1978	Chrysler New Yorker
1960	Chrysler Newport
1962-1978	Chrysler Newport
1960	Chrysler Saratoga
1960-1977	Chrysler Town & Country
1960-1961	Chrysler Windsor
1963-1964	Dodge 330
1963-1964	Dodge 440
1963-1965	Dodge 880
1974	Dodge B100 Van
1975-1978	Dodge B200
1971	Dodge B200 Van
1974	Dodge B200 Van
1975-1978	Dodge B300
1976-1979	Dodge CB300
1970-1971	Dodge Challenger
1966-1978	Dodge Charger
1965-1976	Dodge Coronet
1975-1978	Dodge D100
1968-1974	Dodge D100 Pickup
1967	Dodge D100 Series
1977-1978	Dodge D150
1975-1978	Dodge D200
1968-1974	Dodge D200 Pickup
1967	Dodge D200 Series
1975-1978	Dodge D300
1968-1974	Dodge D300 Pickup
1967	Dodge D300 Series
1960-1962	Dodge Dart
1967-1969	Dodge Dart
1961	Dodge Lancer
1974	Dodge M300
1974	Dodge M350
1978	Dodge Magnum
1960	Dodge Matador
1965-1978	Dodge Monaco
1960-1973	Dodge Polara
1974-1978	Dodge Ramcharger
1975-1977	Dodge Royal Monaco
1975-1977	Dodge W100
1968-1971	Dodge W100 Pickup
1974	Dodge W100 Pickup
1967	Dodge W100 Series
1977-1978	Dodge W150
1975-1978	Dodge W200
1969-1971	Dodge W200 Pickup
1974	Dodge W200 Pickup
1967	Dodge W200 Series
1975-1978	Dodge W300
1968-1969	Dodge W300 Pickup
1971	Dodge W300 Pickup
1967	Dodge W300 Series
1969-1971	Jensen Interceptor
1967-1971	Plymouth Barracuda
1960-1970	Plymouth Belvedere
1965-1967	Plymouth Belvedere II
1970-1971	Plymouth Cuda
1960-1961	Plymouth Custom
1960-1963	Plymouth Fleet Special
1960-1978	Plymouth Fury
1968-1974	Plymouth Fury I
1965-1966	Plymouth Fury II
1968-1974	Plymouth Fury II
1965-1974	Plymouth Fury III
1972-1977	Plymouth Gran Fury
1967-1971	Plymouth GTX
1976-1978	Plymouth PB200
1976-1978	Plymouth PB300
1968-1975	Plymouth Road Runner
1965-1974	Plymouth Satellite
1960-1964	Plymouth Savoy
1960-1961	Plymouth Sport Wagon
1960-1961	Plymouth Suburban
1970	Plymouth Superbird
1974-1978	Plymouth Trailduster

Attributes
ASIN	B001BDUTM4
Boot Type	Multi-Angle
Brand	MSD
California Proposition 65	WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Category	Ignition, Ignition
Color	Black
Country of Origin (Primary)	MX
Emission Code	5, 5
Engine	Mopar 383-440
Engine Make/Size	Mopar 383-440
GTIN	00085132055319
Harmonized Tariff Code (Schedule B)	8544300000
Hazardous Material Code	N
Insulation Color	black
Life Cycle Status Code	Available to Order
NAFTA Preference Criterion Code	B
Position	N/A
SDR Required Flag	N
Series	Street Fire Spark Plug Wires
Sub Category	Ignition Wire and Related Components
Subcategory	Spark Plug Wires
Warning	California Proposition 65
Warranty Time	12
part type	Spark Plug Wire Set