Ignitions and Electrical› Ignition Components

Moroso

Moroso Chevrolet Big Block Ignition Wire Set - Ultra 40 - Unsleeved - Non-HEI - Under Header - Black

$127.48

SKU: M00R 73713

In Stock
In Stock
Ships by Jun 14
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Moroso 73713 is an Ultra 40 ignition wire set designed for Chevrolet Big Block engines with non-HEI, under-header applications. These unsleeved wires feature 40-ohms of resistance per foot, intended to enhance power and fuel efficiency.

Moroso Performance Products is a respected supplier of automotive equipment for racing and street performance. They manufacture a wide range of products, including ignition wire sets, oil pans, and valve covers, serving customers from grassroots racers to professional race teams.

Fitment

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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 73713

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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