V8 Ignition Wires - "IndestructaWires" - Standard, Silicone-Coated

Custom-built V8 plug wires designed for strength, heat resistance, and long life in real builds — from daily drivers to off-road rigs and high-heat engine bays.

This listing uses the flexible, wipe-clean jacket: silicone-glass (~650 °F continuous, ~1,000 °F short peak).
For maximum heat margin, see Standard, Fiberglass Braid (1200 °F).

Built to Order for Your Engine

Provide your engine and vehicle details (plus any relevant mods). We cut every lead to length, choose the correct boot angles and terminations, and build your set specifically for your application.

Toughness You Can Count On

Standard IndestructaWires share rugged construction with our shielded line: high-temp jackets, ceramic or silicone boots, and reinforced ends for lasting strain relief. These are not disposable wires — they’re built to handle heat, abrasion, and vibration far beyond ordinary aftermarket sets.

Core Options – Your Choice of Performance or Suppression

• 0 Ω Wire Core: Ultra-low resistance (~0.04 Ω/ft) for maximum spark energy. Ideal for high-output ignition systems and builds where radios or EFI interference are not a concern.
• ~500 Ω/ft Suppression Core: Provides strong spark energy while reducing EMI/RFI. Recommended for vehicles running EFI, sensitive electronics, or audio systems where noise control matters.

Built as our flagship unshielded set, Standard IndestructaWires let you choose the core that best suits your build. Pair your choice of core with the silicone-glass jacket for flexible routing and easy cleanup.

Materials & Construction

• Core: 0 Ω (~0.04 Ω/ft) or suppression (~500 Ω/ft)
• Dielectric Stack: >50 kV breakdown margin
• Jacket: Silicone-glass (~650 °F continuous, ~1,000 °F short peak)
• Boots: High-temp silicone (~450 °F) or ceramic (~2,000 °F+)
• Terminations: Stainless terminals matched to your distributor and coil
• Diameter: ~8.5–9.5 mm finished size (varies by core/jacket)
• QC: Every set continuity-tested for resistance spec compliance

Best For

• Classic and performance V8s with distributors (carb or EFI conversions)
• Tight bays needing more flexible routing
• Daily drivers and trail rigs needing wipe-clean maintenance
• Builders who want a custom, premium wire set without the added cost of shielding

Options & Upgrades

• Ceramic plug boots for extreme heat
• Color/finish options

What’s Included

• Eight custom-cut plug leads
• Coil/HEI lead when applicable
• Dielectric grease packet
• Install guide, QC card, and warranty card

Install Notes

• Maintain at least 1″ clearance from headers or turbos
• Apply a rice-grain of dielectric grease in boots; seat by the boot, not the wire

Warranty & Guarantee

Every Standard IndestructaWires set is backed by a 3-year materials and workmanship warranty (boots, jackets, crimps).

Each set also ships with a documentation pack including:

• Warranty card
• Quick start installation guide
• QC Test Sheet
• Specification sheet for your exact build

We guarantee fitment when you provide your engine and vehicle details. If an issue arises, we correct it quickly and stand behind our work.

View Warranty Info Here

Optional: Quick Measure to Reduce Downtime

Want the best chance of a perfect first fit? If you have a usable set on the engine, pull and measure it before ordering. This helps us match your exact routing and reduces the chance you’ll need to send anything back for resizing. We include a complimentary first-fit adjustment on initial install.

How to measure (5 minutes):

• Label each wire by cylinder (and the coil wire if external)
• Measure center-of-terminal to center-of-terminal following the route you’ll use
• Note plug boot angle (straight, 45°, 90°) and the distributor/coil boot style
• Add any routing notes (loom location, tight spots)
• Snap a photo of your notes and upload at checkout (or email with your order #)
• If your current set fits poorly or is routed wrong, skip this—just give us your engine and details and we’ll build from scratch. Either way, if a lead needs fine-tuning on first install, we’ve got you with a complimentary first-fit adjustment.

Pro tips:

• Use a flexible tape or a string for accurate path length
• Don’t add extra “just in case” slack — we’ll account for strain relief
• All wires will be routed slightly longer than your measurements to allow proper strain relief and routing

Note:

Distributor-based ignitions only. We do not currently build for coil-on-plug or coil-near-plug engines such as GM LS, Ford Modular/Coyote/6.2, or modern HEMIs. If your ignition uses uncommon or legacy terminals (early Ford rings, marine, industrial, etc.), please contact us before ordering. For one-off builds, send clear photos to confirm compatibility.