Ultra 40 Plug Wire Set - BBC HEI

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$95.97
MSRP: $103.99
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Info

SKU:MOR73712 ,UPC:

SKU: MOR73712

UPC: 084663737121

MPN: 73712

Info

SKU:
MOR73712
UPC:
084663737121
MPN:
73712

Description

The Moroso Ultra 40 Plug Wire Set for big block Chevy HEI distributors delivers high-performance spark plug wire reliability for engines running under sustained load and high RPM conditions. This eight-cylinder plug wire kit features spiral core construction and 8.65 mm diameter wire diameter, engineered to minimize electromagnetic interference and maintain signal integrity across the power band. The 90-degree plug boots ensure secure connection in tight engine bay configurations typical of big block applications, while the HEI-style terminal interfaces directly with modern ignition systems without adapters.

Spiral core wire construction reduces capacitance loss that can degrade spark energy, particularly important when tuning for maximum ignition performance. The under-header routing design accommodates the tight clearances found in many big block Chevy installations where conventional wire paths interfere with exhaust manifolds or headers. Black insulation resists UV degradation and maintains appearance in engine bays exposed to prolonged sun exposure. At 2.37 lbs, this complete wire set installs without requiring supplemental supports or rerouting existing engine components.

This kit addresses the specific needs of big block Chevy builders, restoration shops, and enthusiasts upgrading ignition systems on carbureted or fuel-injected engines. Whether transitioning from points-based ignition to HEI or replacing worn original equipment wires, the Ultra 40 set provides the connector compatibility and routing flexibility that big block applications demand. The wire set works with factory-style distributors and modern aftermarket HEI units that use the same terminal design standard.

SpecificationDetail
Brand
MOROSO
MPN / Part Number
73712
UPC
084663737121
SKU
MOR73712
Weight
2.37 lbs
Dimensions
9.45 x 3.8 x 9.65 in
Wire Type
Spiral Core
Wire Diameter
8.65 mm
Plug Boot Design
90-Degree
Terminal Type
HEI Style
Routing Style
Under Header
Application
Big Block Chevy
Color
Black

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