Choosing the Right Spark Plug Wire Set for Your 1980-1987 Dodge Ramcharger
A complete guide to replacing the spark plug wires on your classic Ramcharger with the best aftermarket options.
- Replace wires one at a time to avoid mixing up the firing order.
- For stock engines, brands like NGK and Standard offer excellent value and reliability.
- For modified or high-performance engines, low-resistance wires from MSD or Taylor are a worthwhile upgrade.
- Always use wire separators and route wires away from hot exhaust manifolds to prevent damage.
Signs of Failing Spark Plug Wires on Your Ramcharger
After decades of exposure to engine heat and vibration, the original spark plug wires on your Ramcharger will degrade. When they start to fail, the symptoms are usually noticeable. Worn insulation can allow the electrical current to arc to the engine block or other metal components instead of reaching the spark plug. This results in a weak or non-existent spark.
Common signs of bad spark plug wires include:
- Rough Idle: The engine may shake or vibrate more than usual when stopped.
- Engine Misfires: You might feel the engine hesitate, stutter, or stumble, especially when accelerating or under load.
- Difficulty Starting: A weak spark can make it harder for the engine to fire up, requiring longer cranking times.
- Reduced Power and Fuel Economy: Inefficient combustion means your engine isn't producing full power and is wasting fuel.
- Check Engine Light: On later models, a misfire will trigger the check engine light, but on these older trucks, you may not have this warning.
- Audible Clicking: You may hear a faint ticking or snapping sound from the engine bay as electricity arcs from a cracked wire.
Choosing the Right Aftermarket Spark Plug Wires
Since original Mopar wire sets for this era are generally unavailable, the aftermarket is your go-to source. The quality and performance can vary significantly between brands. They can be grouped into three main tiers for your Ramcharger.
Tier 1: Performance Brands (MSD, Taylor, Granatelli)
If you have a modified engine, a high-output ignition system, or simply want the best performance and durability, these brands are excellent choices. They feature thicker 8mm to 8.8mm jackets and spiral-wound cores with very low electrical resistance (around 40-50 ohms per foot). This ensures maximum spark energy reaches the plugs.
- MSD (Ignition): A top choice for performance builds. Their Super Conductor wires are known for extremely low resistance and durability. They are often paired with other MSD ignition components.
- Taylor Cable: Highly regarded for being very street-friendly, offering great heat resistance and RFI (radio-frequency interference) suppression to prevent radio static. Many Mopar enthusiasts have used them for years with great results.
- Granatelli: Another performance option, though less commonly discussed in forums compared to MSD and Taylor for this specific vehicle.
Tier 2: OEM-Quality Brands (NGK, Denso, Standard)
For a daily driver or stock restoration, these brands provide reliable, long-lasting performance that meets or exceeds original factory specifications. They are an excellent balance of quality and cost.
- NGK: Known for making high-quality ignition parts that are built to OEM tolerances. Their wire sets feature high-temperature silicone jackets and stainless steel terminals for a precise fit and long life.
- Denso: A trusted OEM supplier for many manufacturers, offering dependable replacement wire sets.
- Standard Motor Products (SMP): A long-standing aftermarket brand that offers affordable, OE-style replacement wires that get the job done for a stock vehicle.
Tier 3: Budget & Mixed-Reputation Brands (Accel, Walker)
These brands can be a budget-friendly option, but owner feedback is mixed. Some users have experienced premature failures with brands like Accel, while others have had no issues. For a critical part like spark plug wires, spending a little more for a Tier 1 or Tier 2 brand is often a worthwhile investment in reliability.
Pro Tip: Proper Wire Routing is Key
While no TSBs exist for the 1980-1987 models, a bulletin for later Dodge trucks highlights a critical point: wire routing matters. To prevent "inductive crossfire" (where the magnetic field of one wire induces a spark in another), never run spark plug wires parallel to each other for long distances. Use the factory wire looms and separators. If wires must cross, they should cross at a 90-degree angle. This is especially important on V8 engines to prevent misfires.
Cost of New Aftermarket Spark Plug Wire Sets (1980-1987 Ramcharger)
| Category | Price Range | Notes |
|---|---|---|
| Standard Replacement (NGK, Standard) | $23 - $60 | Good quality for stock daily drivers. |
| Performance (MSD, Taylor) | $70 - $142 | Low resistance and high-heat jackets for modified or hard-working engines. |
Frequently Asked Questions
Do I need special wires for my 318 vs. my 360 engine?
Yes. While both are LA-series small block V8s, the physical routing and lengths of the wires can differ. Always buy a set that is listed as compatible with your specific engine (e.g., 5.2L/318 or 5.9L/360) to ensure a proper fit. The same applies to the Slant-6 engine.
What does the wire diameter (e.g., 7mm, 8.5mm) mean?
The diameter refers to the thickness of the wire, including its insulation. A thicker wire (like 8.5mm) generally has better insulation, offering more protection against heat and electrical arcing. Performance wires are typically thicker than standard replacements.
What is dielectric grease and should I use it?
Dielectric grease is a non-conductive, silicone-based grease applied to the inside of the spark plug wire boots. It helps seal out moisture, prevents corrosion on the terminals, and makes it much easier to remove the wires in the future. It is highly recommended to use a small amount in each boot during installation.
How do I replace the wires without mixing them up?
The easiest method is to replace one wire at a time. Remove one old wire, match its length to a new wire from the set, route the new wire exactly like the old one, and connect it. Then, move on to the next cylinder. This ensures the firing order remains correct.
Technical Specifications
Varies by engine (Slant-6, 318 V8, 360 V8). Wires are typically 7mm or 8mm diameter with either carbon suppression or spiral wound cores. Boots can be straight or have various angles depending on the application.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Dodge Ramcharger:
- 🛍️ Shop This Part
- Signs of Failing Spark Plug Wires on Your Ramcharger
- Choosing the Right Aftermarket Spark Plug Wires
- Tier 1: Performance Brands (MSD, Taylor, Granatelli)
- Tier 2: OEM-Quality Brands (NGK, Denso, Standard)
- Tier 3: Budget & Mixed-Reputation Brands (Accel, Walker)
- Pro Tip: Proper Wire Routing is Key
- Cost of New Aftermarket Spark Plug Wire Sets (1980-1987 Ramcharger)
- Frequently Asked Questions
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