Troublesome Chevy 350 Bored 60 Over Problems

Published by Dustin Babich on

Possible answer: chevy 350 bored 60 over problems can include reduced engine lifespan, overheating, and insufficient lubrication. These issues stem from the increased internal pressures and temperatures created by the increased bore size, which can strain the block, pistons, rings, bearings, and oil system.

The chevy 350 engine is a popular choice for hot-rodders and performance enthusiasts, and many seek to enhance its power and torque by increasing the displacement through a process called boring. This involves removing material from the cylinder walls and increasing their diameter, typically in increments of 0.

020 inches. Boring the engine 60 over means increasing the cylinder bore by 1. 200 inches or about 30. 5 mm, which can result in a displacement increase of about 100 cubic inches or almost 1. 7 liters. However, while this can lead to significant performance gains, it can also introduce several problems that need to be addressed to avoid engine failure or damage. In the following sections, we will explore some of the common chevy 350 bored 60 over problems and their possible causes and solutions.

Understanding The Basics Of Chevy 350 Bored 60 Over

Chevy 350 bored 60 over is a process of increasing the engine’s displacement by sixty thousandths of an inch. It involves enlarging the cylinder bore diameter of the engine block. The process results in more horsepower and torque due to enhanced combustion.

Engine builders usually recommend boring an engine over when the cylinders already have excessive wear, scoring, or tapering. Another reason to bore an engine over is to create a larger displacement engine. This process allows for more fuel and air to be burned, increasing engine performance.

However, chevy 350 bored 60 over does have some downsides. It increases both engine weight and fuel consumption due to the larger displacement and requires stronger and more expensive engine parts. As a result, it is critical to carefully weigh the pros and cons before deciding to bore a chevy 350 over.

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Common Problems With Chevy 350 Bored 60 Over

Chevy 350 bored 60 over is a popular engine modification. But, it comes with some common problems. Engine overheating is one of them. The bored engine has a smaller coolant passage, leading to higher temperature issues. Another problem is piston slap, where the piston slams against the cylinder.

Bored engines have reduced lifespan of engine components due to overheating. Additionally, increased friction and wear and tear happens because the engine runs hotter. It’s necessary to measure the tolerances carefully and plan accordingly to avoid these problems.

Troubleshooting The Problems

Some common signs of engine overheating include steam from under the hood, a rise in the temperature gauge, and a sweet or burnt smell. Identifying the piston slap sound may require the help of a professional mechanic. Regular inspection and maintenance of engine components could prevent problems associated with a chevy 350 bored 60 over.

Using appropriate lubricants and coolants is essential for optimal engine performance. These steps can help resolve engine problems and ensure your chevy 350 runs smoothly.

Preventative Measures

Regular maintenance and servicing of your chevy 350 bored 60 over can help prevent problems. Choose high-quality components and parts when repairing or upgrading your engine. Keep an eye on engine temperatures to avoid overheating and damaging the engine. Always go to experienced mechanics for all engine work.

By following these preventative measures, you can ensure the longevity and reliability of your engine. With proper care, your chevy 350 bored 60 over should serve you well for years to come.

Upgrades And Modifications

One of the biggest issues facing chevy 350 owners who have bored their engine 60 over is overheating. Upgrading the cooling system is essential to prevent engine damage. Increasing engine capacity with a performance camshaft or stroker kit can also have a significant impact on power output.

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Other performance modifications like intake and exhaust upgrades can further increase performance. If the engine has been heavily used, it may be time for an engine rebuild or replacement. It’s important to consider all options and choose a reputable mechanic to handle any upgrades or modifications to ensure the longevity and performance of the engine.

Frequently Asked Questions On Chevy 350 Bored 60 Over Problems

What Problems Can Occur With Chevy 350 Bored 60 Over?

If the engine is not built properly, it can overheat, leak oil, and lose power.

How Can I Prevent Problems With Chevy 350 Bored 60 Over?

Make sure the engine is built by a reputable mechanic, use high-quality parts, and follow proper maintenance guidelines.

Is It Worth It To Bore A Chevy 350 60 Over?

Boring a 350 60 over can increase performance, but it’s important to consider the cost and potential problems before making a decision.


The problem of over-boring a chevy 350 engine is a real issue that needs to be well-monitored. While it allows for increased horsepower and torque, it also presents a variety of potential problems that can destroy an engine if ignored.

From compromised engine components and overheating to decreased compression and power, bored-60-over engines require extra care and attention to avoid issues. As such, it’s important to work with a skilled engine builder who can guide you in making the right machining decisions and ensure you have the best possible setup for your driving needs.

So, whether you’re building a high-performance drag racer or just looking for some extra power, be sure to consider the pros and cons of over-boring and weigh them against your needs before making any major decisions.

Dustin Babich

Dustin Babich

Dustin Babich

As the passionate author behind, Dustin Babich is a knowledgeable expert in all things automotive. With a deep understanding of car tools, equipment, engines, and troubleshooting techniques, Dustin Babich shares invaluable insights, practical tips, and effective solutions to empower readers in overcoming car-related challenges.


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