MSD 8.5mm 1971-74 Chevy 307,327,350 (with wires over V/C)
Part #: 31659
List Price: $217.90
Our Price: $108.95
You Save: $108.95
8.5mm Chevy 307,327,350 1971-1974 cars/trucks (with wires over V/C) (Socket type)
To accomplish this,MSD use's a copper alloy conductor due to its great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective Electro Magnetic Interference (EMI) "choke".
Heli-Core Wires also prevent a phenomenon known as Inductive crossfire. When two wires are routed close to each other and happen to follow the firing order of the engine, the spark from one wire could be induced into the other wire. This would cause the other cylinder to ignite far advanced and will cause detonation. For example, the firing order of a small block Chevrolet is 1-8-4-3-6-5-7-2. Notice that cylinders 5 and 7 are next to each in both the firing order and the in their position in the block. If the spark from the number 5 plug wire is induced into the number 7 wire, a spark will occur in the cylinder causing detonation. Sooner or later engine damage will occur.
MSD Spark Plug Wires prevent inductive crossfire withMSD's special winding procedure and center core material. The EMI and voltage is held within the wire and is transferred only to the plug!
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