Engines and Components› Engine Covers, Pans and Dress-Up Components

Moroso

Moroso BBC Under Header 90 Deg Plug End HEI Sleeved Ultra Spark Plug Wire Set - Black

$352.99

SKU: M00R 51543

In Stock
In Stock
Ships by Jun 10
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Moroso 51543 is an 8mm spark plug wire set designed for Big Block Chevy engines. It features a spiral core wire material made of nickel copper alloy with a silicone jacket for durability. The wires are black and come with 90-degree plug boots and an HEI-style terminal.

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

BrandMoroso
Part NumberM00R 51543

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.

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