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Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets

4.54 out of 5 stars 138 Customer Reviews

The new standard in ignition wires for racers on a budget! Moroso Ultra 40 unsleeved custom-fit ignition wire sets are the most powerful and RFI/EMI-resistant wires
The new standard in ignition wires for racers on a budget! Moroso Ultra 40 unsleeved custom-fit ignition wire sets are the most powerful and RFI/EMI-resistant wires available for racing today. Plus, their closely woven fiberglass, silicone-impregnated insulation provides up to 8,000 extra volts of protection. Features: * Kevlar® core that's four times stronger than Aramid cores * Class-leading 40 ohms of resistance per foot * Nickel copper alloy conductors for superior spark energy transfer * Extra-thick EPDM layer for greater dielectric strength * High-temperature silicone boots that can withstand heat up
The new standard in ignition wires for racers on a budget! Moroso Ultra 40 unsleeved custom-fit ignition wire sets are the most powerful and RFI/EMI-resistant wires available for racing today. Plus, their closely woven fiberglass, silicone-impregnated insulation provides up to 8,000 extra volts of protection. Features: * Kevlar® core that's four times stronger than Aramid cores * Class-leading 40 ohms of resistance per foot * Nickel copper alloy conductors for superior spark energy transfer * Extra-thick EPDM layer for greater dielectric strength * High-temperature silicone boots that can withstand heat up to 600 degrees * Locking stainless steel plug terminals

Results 1 - 3 of 3

Spark Plug Wires, Ultra 40 Unsleeved Custom-Fit, Assembled, Spiral Core, 8.65mm, Black, Chevy, Small Block, Set

Part Number: MOR-73707

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Black, Chevy, Small Block, Wires over Valve Cover, Set

Part Number: MOR-73725

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Red, 90 Degree Boots, GM with Chevy, Small Block, Set

Part Number: MOR-73683

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Dec 1, 2025 if ordered today

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