The reasons for this are:
* Higher Heat Resistance: The Northstar engine can generate significant heat, and silicone wires are far more resistant to heat degradation than rubber wires. Rubber wires can break down under high heat, leading to misfires, poor performance, and even engine damage.
* Improved Spark Delivery: Silicone wires typically offer better conductivity than standard rubber wires, resulting in a stronger, more consistent spark to the spark plugs. This improves combustion and overall engine performance.
* Durability: Silicone wires are generally more durable and resistant to wear and tear than rubber wires. They're less susceptible to cracking and damage from exposure to engine fluids and environmental factors.
When choosing your wires, look for these key features:
* Silicone construction: This is essential for heat resistance.
* Correct resistance: Check your owner's manual or a reputable auto parts website for the recommended resistance rating for your specific Northstar engine. Using incorrect resistance can negatively impact performance.
* Proper fit: Ensure the wires are designed specifically for a 1993 Cadillac Seville with the Northstar engine. The boot terminations must fit your spark plugs and distributor (if applicable) securely. Incorrect fitment can lead to poor contact and misfires.
* Reputable brand: Choose a brand known for quality automotive parts.
Don't hesitate to consult a parts professional at an auto parts store. They can help you select the correct wires based on your vehicle's specifications and provide expert advice.
