SKU: 73754 | UPC: 084663737541
Moroso Ultra 40 8.5mm Multi-Angle Boot Spark Plug Wire Set – Red (GM Gen V LT1/LT4 5.3L / 6.2L / 6.6L)
The Moroso Ultra 40 8.5mm Spark Plug Wire Set in Red is a premium ignition upgrade for GM Gen V LT1, LT4, and related 5.3L, 6.2L, and 6.6L engines. These high-performance wires feature an 8.5mm silicone jacket with multi-angle boots for easy routing and a secure fit in tight engine bays. The Ultra 40 series delivers excellent conductivity, superior spark energy, and maximum resistance to heat, abrasion, and electrical interference.
The vibrant red finish adds a bold, performance-oriented appearance while the high-quality construction ensures reliable performance under high RPM and high-heat conditions. Ideal for stock, modified, or high-horsepower Gen V LT-powered vehicles where dependable ignition and eye-catching looks are desired.
Key Features
- 8.5mm Ultra 40 Construction – High-conductivity core with excellent spark delivery
- Multi-Angle Boots – Allows flexible routing and secure connection in tight spaces
- Heavy-Duty Silicone Jacket – Superior heat and abrasion resistance
- Red Finish – Bold, performance-oriented appearance
- GM Gen V LT Specific – Direct fit for 5.3L, 6.2L, and 6.6L LT1/LT4 engines
| Spec | Detail |
|---|---|
| Part Number | 73754 |
| Brand | Moroso |
| Type | Ultra 40 8.5mm Spark Plug Wire Set |
| Compatibility | GM Gen V LT1 / LT4 5.3L / 6.2L / 6.6L Engines |
| Wire Diameter | 8.5mm |
| Boot Style | Multi-Angle |
| Color | Red |
| Country of Origin | United States |
| Warranty | Moroso Limited Warranty |
Whats Included
- Complete Set of 8 Spark Plug Wires
- Multi-angle boots for easy installation
Product Notes
- Designed for GM Gen V LT1, LT4, and related 5.3L, 6.2L, 6.6L engines
- Provides improved spark energy and resistance to heat and interference
- Professional installation recommended for proper routing and connection
Installation Notes
- Direct replacement for factory spark plug wires
- Route wires away from heat sources and secure properly
- Estimated time: 30–60 minutes
This Part Fits
| Year Range | Make | Model | Engine | Notes |
|---|---|---|---|---|
| 2014+ | Chevrolet / GMC / Cadillac | Various Gen V LT-Powered Vehicles | 5.3L / 6.2L / 6.6L LT1 / LT4 | 8.5mm Ultra 40 Spark Plug Wire Set (Red) |
Why Choose Moroso Ultra 40 Spark Plug Wires?
- High-conductivity 8.5mm wires with multi-angle boots for reliable spark delivery
- Superior heat and abrasion resistance for high-performance applications
- Vibrant red finish that adds a performance look to the engine bay
Frequently Asked Questions
- Q: Will this wire set fit my 2018 Chevrolet Corvette with the LT1 engine?
A: Yes, it is designed for GM Gen V LT1, LT4, and related 5.3L, 6.2L, 6.6L engines. - Q: Are these wires pre-cut or universal?
A: They are a pre-terminated set specifically for Gen V LT engines with multi-angle boots. - Q: Is professional installation recommended?
A: Recommended for proper routing and to avoid cross-firing or heat damage.
Shipping & Handling
- Method: Ground UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Secure Moroso retail packaging
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