The terminals are covered in black boots that protect the conductor from engine heat to ensure spark delivery.
Street-Fire Wire Set 8 Cyl 90°, Sock/ HEI, Univ
Canada 1957 Chevrolet Two Ten Series Spark Plug Wire Set in Canada
MSD Ignition, NZ
IGNITION WIRE SET 90 DEG BOOT CHEV LT1 – Silvester V8
Performance Spark Plug Wires - Advance Auto Parts
MSD Ignition 31239 Universal Spark Plug Wire Set
Spark Plug Wires – JBs Power Centre
MSD Black Super Conductor SB Chevy for Use with Low Profile Distributor 31243
Moroso Performance Jumper Terminal Battery 74140
Circle Track Supply, Inc. > 602 CRATE ENGINES/MOTORS & PARTS > MOROSO Spark Plug Wire Set, Ultra 40, Spiral Core, 8.65 mm, Black, 90 Degree Plug Boots, HEI Style Terminal, Under Headers, Small Block Chevy, Kit