How much does a Chevy 350 weigh? Why Chevy 350 so popular?

How much does a Chevy 350 weigh? The “Chevy 350” typically refers to the Chevrolet Small-Block V8 engine that was introduced by General Motors in 1955. It’s one of the most iconic and widely used engines in automotive history. The “350” in the name refers to the engine’s displacement, which is 350 cubic inches (5.7 liters).

The Chevy 350 engine has been used in a wide variety of vehicles over the years, including cars, trucks, and even boats. It has gone through various iterations and improvements, becoming a staple in American muscle cars and hot rods. The engine has been known for its durability, simplicity, and versatility, making it a popular choice for engine swaps and custom builds.

How Much Does a Chevy 350 Weigh?

How much does a Chevy 350 weigh

The Chevy 350 is one of the most popular vehicles out there. It is a classic vehicle with different engine variants. Most people often wonder how much a 350 engine weighs. A regular Chevy 350 engine can weigh anywhere between 400 and 4000 pounds. The average weight of a 350 is about 2000 pounds. This article will look at different 350 engines and their performance.

Best 350 Engine Years

If you’re looking to build a new car around a 350 engine, you should first know which 350 engine to get. There were at least 15 variants developed since the 1970s, with many of them being highly popular among Chevy fans.

LT-1 (1970-1972)

The Chevy 350 LT-1 engine made its debut in 1970 and quickly became popular among car enthusiasts. This high-performance engine was a marvel of engineering with its camshaft, solid lifters, and carburetor designed with an aluminum intake. The engine’s power output of 350 horsepower made it a popular choice for the 1970 Corvette.

However, the engine faced emission regulations and had to reduce its power from 370 horsepower to 255 horsepower in 1972 and eventually to 145 horsepower in 1975. Despite the reduction in power, the Chevy 350 LT-1 remains one of the best engines of its generation, offering exceptional fuel efficiency.

If you are looking for high-output power, the L46, 1971 LT-1, and the 1969-1970 L48 are also great options, with a horsepower of 350, 330, and 300, respectively.

L98 (1985-1992)

The L98 engine was a standout among the Chevy 350 engine line-up. Its popularity was cemented in 1992 when it became known for its high performance, fuel efficiency, and eco-friendliness. The engine featured a tuned-port fuel injection system and aluminum cylinder heads, which helped it reach up to 230 horsepower.

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This engine was designed to cater to the growing demand for vehicles that were environmentally responsible. The L98 engine remained one of the most popular Chevy 350 engines ever introduced to the market.

It was used in Corvette, Camaro, and Pontiac car models and was highly regarded by car enthusiasts. The L98 engine was an excellent choice for street performance and won many races.

Its high torque output, fuel efficiency, and low emissions make it one of the best Chevy 350 engines available. The engine was so successful that it served as the basis for the Callaway Twin-Turbo package.

L31 (1996-2000)

The 2002 L31 engine, also known as the Vortec 5700, is a highly recognized version of the Chevy 350 engine. It was used in General Motors trucks and vans until 2002 and was considered the most reliable engine, with a 100,000-mile warranty on the entire engine block.

The L31 engine features cylinder heads with combustion chambers and intake ports similar to those in the LT-1 engine, making it compatible with previous versions of small-block engines. It’s also easily upgradeable and can be fitted on various models of trucks, vans, and SUVs with the help of a professional mechanic.

The L31 engine is known for its strength, reliability, and durability, producing 255 horsepower at 4,600 RPM and 330 foot-pounds of torque at 2,800 RPM. You can either choose a used L31 engine or opt for a half-finished crate version, making it readily available and a popular choice for those looking to upgrade their vehicle.

Which Are the Heavier Chevy 350 Engines?

The LM1 is said to be one of the heaviest 350 engines. It weighs about 3660 pounds and delivers hp anywhere between 155 and 175. You get a higher hp output only when equipped with a Q-jet engine.

The LM1 was one of the first 350 engines with electric ignition, automatic starting valves, and input carburetors.

The L65 is another heavy 350 engine. It is the equivalent of the L48 motor however comes with a Rochester carburetor. It weighs 3501 pounds.

This engine was launched by Chevy and delivered a maximum output of 250 hp. The efficiency was later reduced to 145 hp, and the torque rating was 255 lb-ft.

The tractor variant of the 350 was the LT-9. It was installed in all K30 and K20 lorries, transport wagons, and vans. The motor generates 160 hp and a torque of 250 lb-ft. It weighs 3500 pounds.

The L46 is another heavy 350 engine. It weighs a little over 3500 pounds. It was one of the most popular 350 engines in 1970.

This was a gas engine and was primarily used in sports cars. The L46 had a very powerful motor and delivered 350 hp along with a torque of 300 lb-ft.

Which Are the Lightest Chevy 350 Engines?

The LS9 is probably one of the lightest 350 engines. It weighs approximately 530 pounds and produces 165 hp and 275 lb-ft.

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The engine has titanium welded frames, a water pump, an intake manifold, cast iron cylinders, and a fuel pump. The LS9 is one of the most powerful engines and was used regularly in the C6 Corvette.

How much does a Chevy 350 weigh

The L98 is another light engine weighing in at 550 pounds. It was one of the first 350 V8 engines to come with a TPI (Tuned Port Fuel Injection) rather than a cross-fire ignition. It was a standard motor in most Chevys.

The L98 has seen its performance increase with time, unlike other V8 engines. It started with a delivery of 230 hp, then went up to 240 hp, and now stands at 245 hp.

The LT-1 was considered a warrior engine. It could deliver a massive 350 hp and was one of the preferred motors for most Chevys. Although it weighed just 465 pounds, it could deliver over 370 hp during its peak.

History of the Chevy 350 Engine

With the introduction of the 350 engines came the small lot motor – 256 metric tons. This, however, evolved into 250 cubic inch engines and featured in various Chevy sports cars.

Most race cars used the gas version of the 350 diesel engine in the 1980s. The emissions equipment technology and the fuel injector tank were standard in all 350 engines.

Why Was the Chevy 350 So Popular?

Simple Design

The Chevy 350 was popular because it had a simple design and was easy to work with. It was also one of the most reliable cars of its kind. The Chevy 350 had a regular engine, which meant that it did not have many parts or fluids that could go wrong.

Cheap Parts

The engineering of the Chevy 350 was simple, so the parts could be sourced for a low price. This meant they were easy to repair, especially after the war years when many people bought their first cars. It came equipped with a V8 engine and could hold up well in harsh conditions.


The 350 was incredibly dependable and easy to maintain. The 350 had an aluminum engine block, which helped make it more fuel efficient than previous models. The engine also had a camshaft with two valves per cylinder, which helped reduce emissions.


The 350 delivered decent power and was designed to be affordable. It did not have the same level of performance as the more expensive vehicles, but this did not deter buyers from making purchases.

Long-Lasting Engine

The Chevy 350 had a long-lasting engine. Its durability allowed it to be used in many different vehicles. This engine is still used today but has been modified to fit into cars with smaller frames.

Specs Of The Chevy 350 Engine

The Chevy 350 engine has a 4.0-inch bore and a 3.48-inch stroke. Its horsepower output depends on the year model and the make of the car that uses it. It can generate 145 to 370 horsepower. It has been rated to produce 380 pound-feet of torque, making it a great engine for towing.

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Unfortunately, it has low fuel economy, and it was eventually discontinued in favor of engines that are more fuel-efficient beginning in 2004.

What Are The Best Upgrades to a Chevy 350?

The aftermarket industry that the Chevy 350 created was due to the sheer number of Chevy 350 engines that were manufactured and how easy it was to work on the engine.

How much does a Chevy 350 weigh

Keep in mind that many of the upgrades to the Chevy 350 have the potential to break local laws regarding emissions or noise. Check your local regulations before making any modifications to your Chevy 350.

Exhaust Header

Installing larger headers on a stock Chevy 350 engine can increase the torque by 53 foot-pounds and add 16 horsepower. The headers are the weakness of the stock design of the original Chevy 350. Thus, modifying it should be the first thing that you’d do.

Think about it this way, to increase the horsepower of your Chevy 350, you need to increase combustion. Once you increase combustion, your engine will produce more exhaust gases. Thus, you need to have a large enough exhaust system to handle all the exhaust gases that your engine would generate after producing more horsepower.

Turbochargers Or Superchargers

Either one of these two will push more air into the combustion chamber. If done properly, you can expect an increase of six to eight percent to the horsepower output per pound of boost on your Chevy 350.

A Chevy 350 with cast iron pistons can handle up to seven pounds per square inch. This can result in an almost 50% increase in the total horsepower output of your 350.

Installing Forged Pistons

Replacing your stock pistons with forged pistons will allow your Chevy 350 to handle even more power. Forged pistons have more strength than the stock pistons in your Chevy 350.

These pistons are preferred by car enthusiasts because they are more durable than stock pistons, and they can easily be customized to many different configurations.

Improving The Air Intake

Replace the stock air intake system with a cold air intake system. Cold air is naturally compressed because molecules move closer to each other at low temperatures. Naturally, compressed air has more oxygen than uncompressed air. More oxygen in the combustion chamber means more horsepower is generated by your engine per revolution.

Most cold air intake kits include a heat shield to prevent the warm air coming from the surface of your Chevy 350 engine from mixing with the cold air going into the air intake.


How much does a fully dressed small block Chevy weight?

The S10 swaps have been done for years with fully dressed small blocks weighing in at closer to 685 lbs. You have plenty of room for a bare bone engine and your body.

How much does a V8 engine block weigh?

The average eight-cylinder engine weighs between 400 lbs. and 700 lbs.

How heavy is a 350 small block Chevy?

Most people often wonder how much a 350 engine weighs. A regular Chevy 350 engine can weigh anywhere between 400 and 4000 pounds. The average weight of a 350 is about 2000 pounds. This article will look at different 350 engines and their performance.

Above is information about How much does a Chevy 350 weigh? that we have compiled. Hopefully, through the above content, you have a more detailed understanding of Why was the Chevy 350 so popular? Thank you for reading our post.

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