What size is a Chevy flywheel?
As a seasoned auto service provider, I often encounter questions about various components of vehicles, including the flywheel. The flywheel is a crucial part of a car's engine, particularly in manual transmission vehicles. In this article, we will explore the sizes of Chevy flywheels, their importance, and how to choose the right one for your vehicle.
What is a Flywheel?
The flywheel is a mechanical device that stores rotational energy. It plays a vital role in the engine's operation by helping to smooth out the power delivery from the engine to the transmission. In manual transmission vehicles, the flywheel also serves as a mounting surface for the clutch.
Common Sizes of Chevy Flywheels
Chevy flywheels come in various sizes depending on the engine type and model. Here are some common sizes:
- 153 Tooth Flywheel: Typically used in small block engines, such as the 305 and 350 V8 engines.
- 168 Tooth Flywheel: Commonly found in larger engines, including the 454 big block V8.
- Flywheel Thickness: Most Chevy flywheels are about 1.0 inches thick, but this can vary based on specific applications.
Choosing the correct flywheel size is essential for optimal engine performance and compatibility with your vehicle's transmission system.
Factors to Consider When Choosing a Flywheel
When selecting a flywheel for your Chevy, consider the following factors:
- Engine Type: Ensure the flywheel matches your engine's specifications.
- Transmission Compatibility: The flywheel must be compatible with your vehicle's transmission system.
- Material: Flywheels can be made from various materials, including steel and aluminum, which can affect weight and performance.
- Weight: Lighter flywheels can improve engine response, while heavier ones can provide better stability.
By taking these factors into account, you can ensure that you select the right flywheel that meets your performance needs and vehicle specifications.
Conclusion
Understanding the sizes and specifications of Chevy flywheels is crucial for any car enthusiast or owner. Whether you're replacing a worn-out flywheel or upgrading for performance, knowing the right size and type can make all the difference in your vehicle's operation. If you have any questions or need assistance with your Chevy's flywheel or any other auto service, feel free to reach out to us at Kevin's Autos!
Frequently Asked Questions
Will a 305 flywheel fit a 350?
If the original 305 and the replacement 350 are the one piece rear main seals the 305 flywheel fits the 350. The key is the crank/block seal combination. like he said: round, machined, flange requires a flywheel (or flex plate) with a weight.
What size are the flywheels on a Chevy?
Chevy V8 flywheels come in two sizes: Big, 14 in dia, 168 tooth and Small, 13 in dia, 153 tooth.
How big is a 168 tooth flywheel?
168 tooth flywheel is 14" in diameter and the 153 is 13". Which one you use depends upon your starter bolts. If the bolts are staggered, use the 168, if the bolts are straight across from one another, use the 153. 69 Custom 30 tow truck 350/4 spd/4.10 (resto done, CRUISIN TIME!)
Does lighter flywheel increase HP?
Firstly, with a 55lb (25kg) flywheel and clutch combination and secondly with a lightweight 29lbs (13kg) flywheel and clutch combo. The lightweight flywheel made 7hp and 9ftlbs more than the heavyweight flywheel setup. Admittedly the difference isn't huge, but less rotating weight does equal more HP!
How to measure a Chevy flywheel?
Make sure the mounting surface is clean and free of debris. Using a depth micrometer. Place it flat on the mounting surface of the flywheel housing. And measure the distance to the ring gear. Face.
What is the difference between a 153 and 168 tooth flywheel?
Other than the bolt pattern (and low torque verses high torque starters) the starters are the same. The starter will spin the engine faster with the 153 tooth flywheel, but the starter has more "leverage" turning a 168 tooth flywheel, therefore turns the engine over with less amperage draw.
How do I know what size flywheel I have?
Identifying your SAE Flywheel Size
- Start by counting the number of tapped holes on the flywheel and measuring the diameter of the hole (dimension G).
- Measure the distance from the center of one tapped hole to another.
- Measure the pilot diameter in the flywheel (dimension D).
Does a larger flywheel increase torque?
The Verdict:FICTION
At a constant rpm, horsepower and torque both change proportionately.
Can you turn a 327 into a 350?
This means that this particular 327 can easily be upgraded into a 350, which has become a standard in the aftermarket industry with tons of available parts. Refer to the chart on the previous page for side-by-side number comparisons.
How many teeth are on a Chevy 350 flywheel?
On the older SB Chevy flex plate, there's a 153 tooth gear and a 168 tooth gear. The starters are also different. The 153 tooth starter mounting holes are inline with the flexplate. The 168 tooth starter is diagonal to the flexplate.
