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Moroso 73729 Ultra 40 Black Spark Plug Wire Set, Fits Big Block Chevy w/Under Header Routing, HEI Distributor Ends and 135 Degree Plug Ends

4.4 (3) Write Review
Free shipping on orders over $29.99

$109.94

$ 49 .99 $49.99

In Stock

About this item

  • Ultra 40 Custom Fit Wire Set, Black Wire, Unsleeved, BBC, Under Header/HEI, 135 Deg. Spark Plug Boot
  • Cost-effective version of our race proven Ultra 40 Race Wire, without heat sleeving
  • 7mm or 8. 65mm diameter wire with 40 ohms of resistance per foot
  • Complete, ready-to-install sets available for specific engines
  • Wire for each cylinder is labeled


Ultra 40 Race Wire; Unsleeved, BBC; Under Header Cover Hei Style Cap; 135 Deg. Boot, Black


allen
Reviewed in the United States on February 13, 2025
They worked as they should
Thomas Hall
Reviewed in the United States on December 29, 2022
Much easier to attach properly than the long boot plug wires
Ryan lynxwiler
Reviewed in the United States on November 7, 2022
Wanted wires long enough to route them for a cleaner look. These replaced my old moroso red wires. Definitely noticed better performance over my who knows how old of wires.
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