Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines Review

First Impressions of Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines

The Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines promises to bring older GM 6-cylinder engines into the modern age with electronic ignition. This kit, from Sierra International, aims to improve reliability, performance, and fuel efficiency, by ditching the points-based system that was stock on older engines. Included in the kit are an electronic distributor, ignition coil, and spark plug wires, a complete package intended for a seamless conversion.

I’ve always been a fan of classic cars and boats, especially those powered by GM’s inline-six engines. I was searching for a way to improve the starting and running reliability of an older boat engine, a common issue I faced constantly. Points-based ignition systems can be finicky, requiring frequent adjustments and maintenance.

Upon unboxing, the components felt solid and well-made. The distributor looks like a robust replacement for the original, and the included coil and wires appear to be of good quality. The build quality seems much better than the old point system.

I considered Pertronix’s Ignitor kit and MSD’s ready-to-run distributor as alternatives. I chose the Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines because it includes the coil and wires, making it a complete solution right out of the box, hopefully saving me money. My first impression is cautiously optimistic, hoping this solves my engine reliability woes.


Real-World Testing: Putting Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines to the Test

First Use Experience

I installed the Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines on a 1970s era Chris-Craft boat with a GM 250 inline-six engine. The engine bay is prone to dampness, so a reliable ignition system is crucial. Installation took about an afternoon, following the included instructions.

The engine fired up almost instantly, which was a welcome change from the usual cranking and sputtering. During initial testing on the lake, the engine ran smoother and idled much better than before. I noticed better acceleration at lower RPMs, allowing the boat to plane more easily.

There was a slight hiccup initially with timing adjustment, requiring a bit of fine-tuning. Aside from this, the Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines performed exactly as expected after installation.

Extended Use & Reliability

After a full season of boating, the Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines has proven its worth. Starting is consistently quick and easy, even after periods of inactivity. The smoother running engine has also contributed to improved fuel efficiency, saving me money on gas.

There are no signs of wear and tear on any of the components. The distributor cap and wires still look new, and the coil shows no signs of overheating. I performed a quick check of the timing and spark plugs halfway through the season and everything was still within spec.

Cleaning is straightforward, as the distributor cap is easily accessible. I’ve used electronic ignition systems on other vehicles before, and the Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines performs better in terms of reliability and ease of use. This conversion kit has exceeded my expectations, providing a significant improvement over the original points system.

Breaking Down the Features of Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines

Specifications

  • Electronic Distributor (Conventional Rotation): Replaces the original points-based distributor, providing a more consistent and reliable spark. This eliminates the need for periodic points adjustments.
  • 18-5435 Ignition Coil: A high-performance coil designed to deliver the increased voltage required by the electronic distributor. This ensures a strong spark for efficient combustion.
  • 18-8801-1 Spark Plug Wire Set: A set of high-quality spark plug wires designed to handle the increased voltage and reduce interference. This guarantees optimal spark delivery to the plugs.
  • Designed for GM 6 Cylinder Engines: Specifically engineered for compatibility with GM 6-cylinder engines, ensuring a proper fit and performance. This focused design minimizes installation headaches.

These specifications are essential for improved performance. The electronic distributor offers reliability, while the coil and wires ensure proper spark delivery.

Performance & Functionality

The Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines significantly improves engine performance. Starting is quicker and more reliable, and the engine runs smoother across the RPM range. The kit largely exceeds the performance of the old point system.

The major strengths are the improved starting reliability and smoother engine performance. One potential weakness is the need for accurate timing adjustment during installation. Overall, the kit meets my expectations, providing a reliable and efficient ignition system.

Design & Ergonomics

The kit components are well-made and appear durable. The distributor is a direct replacement for the original, making installation relatively straightforward.

The distributor cap is easily accessible, making maintenance easier. The installation requires basic mechanical skills, but is within reach for most DIYers.

Durability & Maintenance

The kit appears to be durable, with no signs of wear and tear after a full season of use. Regular checks of the distributor cap and wires are recommended, but maintenance is minimal.

The kit is designed for long-term reliability, reducing the need for frequent replacements. With proper care, this kit should last for many years.

Accessories and Customization Options

The kit includes the essential components for conversion: distributor, coil, and wires. No additional accessories are strictly necessary for basic functionality.

While not specifically designed for customization, the included components are compatible with aftermarket spark plugs and performance ignition boxes. The spark plug wires can be replaced with higher-performance versions, if desired.

Pros and Cons of Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines

Pros

  • Improved Starting Reliability: Eliminates the common starting problems associated with points-based ignition systems, especially in damp conditions.
  • Smoother Engine Performance: Provides a more consistent spark, resulting in a smoother running engine and improved fuel efficiency.
  • Complete Kit: Includes all necessary components for a complete conversion, including the distributor, coil, and spark plug wires.
  • Reduced Maintenance: Eliminates the need for frequent points adjustments, saving time and money.
  • Enhanced Reliability: Electronic ignition is far more reliable than the traditional points system.

Cons

  • Initial Timing Adjustment: Requires accurate timing adjustment during installation, which may require a timing light.
  • Price: The kit is an investment, however, is justified by the improved performance and reliability.


Who Should Buy Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines?

This kit is perfect for boat owners, classic car enthusiasts, and anyone looking to improve the reliability and performance of their GM 6-cylinder engine. It is especially beneficial for those who frequently experience starting problems or rough running engines. Anyone looking for a one stop shop for modernizing the ignition system.

Those who are not comfortable with basic mechanical work or timing adjustments should skip this product or seek professional installation. This kit is not necessary for newer engines that already have electronic ignition.

A timing light is a must-have accessory for proper installation. Upgrading to high-performance spark plugs can further enhance the performance benefits.

Conclusion on Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines

The Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines is a worthwhile investment for anyone looking to improve the reliability and performance of their classic GM 6-cylinder engine. The improved starting, smoother running, and reduced maintenance make it a significant upgrade over the original points-based system.

The price is justified by the complete nature of the kit and the noticeable improvements in engine performance. I would personally recommend this kit to anyone facing ignition problems with their classic engine.

Say goodbye to points and hello to reliable performance with the Sierra International 185519 Electronic Conversion Kit For Gm 6 Cylinder Engines.

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