Moroso Ultra 40 Spark Plug Wires Under Header HEI

Moroso Ultra 40 Spark Plug Wires – Blue, 90° Boots, GM V8 (MOR-73607)

These wires are beefy, blue, and built like a damn firehose for spark. The Moroso Ultra 40 Race wires crank out power with just 40 ohms of resistance per foot and a Kevlar® core that laughs at heat, time, and your engine bay’s chaos.

We’re talkin’:

• 8.65mm thick for max RFI/EMI protection

• Kevlar core = 4x stronger than aramid

• High-temp silicone boots (up to 600°)

• Nickel copper conductors for ultra-clean spark

• Fiberglass + silicone shielding to block up to 8,000 extra volts of electrical noise

Locking stainless terminals. Under-header routing. V8 GM fitment.

MOR-73607 — the wires your ignition deserves. 💥🔥

👉 In stock at GRE6, where the good stuff lives.