Ignitions and Electrical› Ignition Components

MSD

Black Super Conductor Big Block Chevy, Socket For Use On Chevy Big Block, Socket, Black Jacket MSD Ignition

$361.06

SKU: M00T 31373

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The MSD 31373 is a custom spark plug wire set designed for Chevy Big Block engines with socket-style distributor caps. It features 8.5mm Super Conductor wires with only 40-50 ohms of resistance per foot, utilizing a copper alloy conductor for excellent voltage carrying capabilities. This low resistance ensures more spark energy reaches the spark plug, while a tightly wound conductor and ferro-magnetic core create an effective EMI choke to prevent interference with vehicle electronics.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMSD
Part NumberM00T 31373

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy