A component of an automobile that we accept as normal but does a great deal of work under the hood will be discussed in this article. The Electronic Ignition System (EIS) is another name for this component.
In comparison to other types of ignition systems, such as those using points, this one offers greater adaptability, better performance, and lower costs. With a Chevy 350 engine, I can assist you in finding the best hei distributor for 350 chevy.
To help you make an informed purchasing decision, I’ve researched a variety of aftermarket components and outlined the key considerations to keep in mind. As a result, don’t skip any steps and select the best hei distributor for 350 chevy. You would avoid misfires, power outages, and higher-than-normal fuel usage.
Our Top Picks for the Best Hei Distributor for 350 Chevy
What Is a Chevy 350 HEI Distributor?
GM engineers were inspired to create HEI distributors by the necessity to replace the decades-old point-type ignition system of the 1970s. With its full name of High Energy Ignition, Electrical distributor HEI can run engines up to 5000 RPM. General Motors’ Delco-Remy Division deserves all the praise.
There are four-pin, five-pin, seven-pin, and eight-pin modules for various cars. The 4-pin models described are mostly for Chevy 350 engines. Adding an HEI distributor to an older GM vehicle with a point-and-condenser ignition system will vastly improve performance.
Which 350 Chevy HEI Distributor Is The Best?
I’ve made sure that the Chevy 350 engine’s specifications are met by the products I’ve chosen. With complete assurance, you can order any of them, minus the compatibility issue.
#1. MSD 85551 Pro-Billet Distributor
Are you looking for something better than the top pick’s quality? Do you not have a spending limit? Because of these answers, MSD 85551 is one of the best hei distributor for 350 chevy on the market.
In terms of fuel efficiency and durability, no other vehicle on this list can match it. So, it is my recommended best hei distributor for 350 chevy.
There aren’t a lot of differences between this and the previous version in terms of features. The high cost of MSD 85551 can be traced to the high-quality materials and sophisticated engineering that go into its construction.
A block of 6061-T6 aluminum was used for the housing, which was then CNC machined to perfection. The distributor’s manufacturer employs a.5-inch steel shaft to keep it stable at high RPM. The shaft is supported by enclosed ball bearings and long sintered bushings.
The item has a QPQ coating to reduce friction and increase corrosion resistance. You should, however, keep in mind one thing. There is no vacuum advance canister for this distributor.
The MSD HEI distributor chevy 350 is an excellent choice if you seek a long-lasting and trustworthy product. The ease of installation, the lack of maintenance, and the durable construction make it a perfect choice.
Pros
Corrosion-resistance
Pinned pins made of Tig welds
Housing that is long-lasting and sturdy.
Easy-fit
Cons
Expensive
#2. High-Performance Professional Racing Hei Distributor
It’s not a sin to look for a cheaper model than the competition. When it comes to the greatest affordable product in my evaluation, nothing is lacking if you compare it to the best-rated ones.
So, why am I unable to give it my highest recommendation? It’s because the 7500RPM limit on this HEI distributor would be too high. The ignition system will not support using it in a modified engine for racing purposes.
However, its performance is comparable to high-end models, which is what other customers and I appreciate. The 350 Chevy motors that fulfill all of the requirements are fully compatible.
You don’t have to worry about this ignition system’s parts and components because they have been computer-tested.
In the previous model, it did not support vacuum advance canisters. You don’t have to make a trade-off for that when you purchase this one. For the price, the metal enclosure and other components are commendable.
This system from King Auto Parts is one of the best hei distributor for 350 chevy if you don’t plan to use it for racing and you’re on a tight budget. This distributor’s price and quality are unbeatable for regular use.
Pros
Affordable
Components that have been tested on a computer.
Is it simple to set up
Cons
Racing applications are not supported
#3. Voltstorm Performance HEI Ignition Distributor
The Voltstorm distributor isn’t even comparable in quality to the original. According to consumer feedback, coil quality is the most common source of dissatisfaction. In some cases, it should last longer than expected. When you’re in the midst of nowhere, and your car won’t start, what are you going to do?
There were a few complaints, but they were hardly noticeable compared to the number of positive reviews. Because of its 75K-volt coil, you can count on this one for consistent high-performance. Consequently, it can offer enough electricity for upwards of 9000 RPMs.
More GM car models are supported than in the top pick. If you can afford a few extra dollars, you can obtain one of the best hei distributor for 350 chevy, which is this one.
The aluminum body of this 4-pin ignition unit has been CNC-machined, and the components are long-lasting. As a result, vibration will negatively impact the system’s overall performance.
If you’re not happy with your purchase, the manufacturer will refund your money. So, if you have a fast automobile, give it a shot.
Voltstorm’s HEI distributor can support more vehicle models and its stable performance in high-speed automobiles.
Pros
Consistently good results
The body of a CNC manufactured object
Compatibility with motorsports-related software
You can adjust both mechanical and vacuum advancements.
Cons
The quality of the coils does not equal the price.
#4. A-Team Performance HEI Distributor
I discovered that this item offers similar high-performance characteristics and specifications to the original.. I was looking forward to it, but the user reviews swayed me. You may have some issues with the quality of the build, which isn’t ideal.
Improve the manufacturing process and conduct a proper quality control check. This distributor comes close to being the best hei distributor for 350 chevy in terms of features, but it does not support applications that require 9000 RPM rotational speeds.
However, its superior build quality, brass terminals, mechanical and vacuum advancements, and billet aluminum casing elevate it above the entry-level model. You won’t have any issues with installation, thanks to CNC-machined precision-fit parts.
The hardened steel gears, which last almost as long as high-end ones, are also a plus. Using aluminum, the shaft is polished and corrosion-resistant, making it an excellent choice. Despite its limited capabilities and inexpensive pricing, it’s one of the best small-block Chevy ignition systems.
This is one of the best hei distributor for 350 chevy for those looking for something a little less expensive than the top-of-the-line devices yet want the same quality. You get what you pay for in terms of features and performance.
Pros
Strong steel gears are a plus.
Much more resistant to wear and tear than comparable OEM components.
Machining and polishing an aluminum shaft by the vacuum advances
Cons
Incompatibility with engines running at 9000 RPM.
#5. Assault Racing Products 1035001 Red Cap HEI Distributor
Assault Racing Products’ 350 Chevy HEI distributor is one of the best hei distributor for 350 chevy on the market today. As a result, it’s designed to deliver more power to your hands, ensuring that you will get the performance you demand. Keep reading if you’d want to give this a whirl.
Designed to fit into the ignition system, this has a good design. The housing is made of CNC machined and lacquered steel to ensure long-term endurance. It’s even fantastic with the anodized aluminum finish. To make things easier, you can adjust the vacuum advances. Brass, quality cover, and 4340 Chromolygear contribute to its reliable operation.
Inside this distributor, the designers incorporated a high-performance 65,000 volt super coil. The Accel-type coil cover dissipates away from the coil as a wire retention device. When in use, its coil with a 4-pin module works together to maintain an ignition rate of 7,500 revolutions per minute (RPM).
A variety of GMC cars can benefit from the vehicle’s design and performance. This is to make sure that you get the most bang for your buck. So, if you’re looking for a high-end HEI distributor, look no further than this model.
Pros
Made to precisely match the engines they’re meant to be used in.
Powerful and consistent performance throughout the project
Keep the heat out by putting a coil cover inside.
You can adjust the vacuum advances.
Crafted using high-quality components.
Cons
Stronger top cap screws would be preferred.
Buying Guide for the Best Hei Distributor for 350 Chevy
There aren’t many HEI distributors for Chevy 350 motors compatible with the original equipment manufacturer. Furthermore, there aren’t many disparities. So, the cost is the most important factor in deciding which one to go with. Here’s how I arrived at my final list of five products that I consider the best hei distributor for 350 chevy on the market.
Compatibility
As I previously stated, compatibility testing is the most important component of purchasing an aftermarket part. You can find a list of compatible vehicles by looking at Amazon’s product listings. You can use other parameters if your car is on the list.
RPM and Coil Speed
There are two kinds of distributors in my review. One has a 65000-coil engine with 7500 RPM top speed. For 9000 RPM engines, there is a 75000 coil and a 9000 RPM version.
Budget
Shortlisting two or three models is likely at this point. Decide on a price range and then look for the best deal within that range. You should also see if you can acquire a superior HEI distributor by simply spending a little more money than the one you’ve already picked.
Material
The quality of the product’s construction or the materials utilized to make it is the second most important consideration. You have a choice between less expensive cast aluminum and more expensive 6061-T6 aluminum for the housing. There’s no need to worry about either of them.
Nevertheless, the most expensive option is the greatest choice, but it doesn’t offer any further benefits in terms of performance or durability. Consider the gears, shaft, wires, coils, and terminals when inspecting the gearbox.
FAQs
- Is an HEI distributor better?
Yes, the self-contained nature of the HEI distributor makes things better for over-the-road automobiles. Its enormous acceptance can also be attributed to the fact that it is simple to set up and does not require a lot of wiring.
- What occurs if the ignition is set too far forward?
In a nutshell, increased ignition timing results in engine overheating. Too early ignition of the fuel-air mixture increases the overall heat energy produced during combustion.
- How to know If the HEI distributor is defective
Failed starts, decreased fuel economy, weak sparks, electrical arcs, and other symptoms might all point to a faulty HEI distributor.
Conclusion
Early versions of this new ignition mechanism were not flawless. Because of this, I can safely recommend the best hei distributor for 350 chevy that are listed above.
Some aftermarket companies offer more expensive but higher-quality alternatives. I’ve enlisted distributors ranging in price and RPM from pricey to cheap.
The ignition system is critical to efficient combustion, fuel economy, and consistent engine performance. Which one, in your opinion, offers the best performance and value?