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Chevy 350 Vortec Heads Specs



The cylinder heads for the Vortec 5.7-liter (350-cubic-inch) small block Chevy (SBC) engine were used on GM trucks and vans beginning in 1996. GM engineers designed a cylinder head that became popular with performance enthusiasts. Casting and DesignVortec heads are made from cast iron and incorporate an intake port shape designed to promote "swirl" or turbulence. They share many similarities with older heads, but have intake ports that are slightly larger--170cc versus 160cc. As with many older head designs, 1.94-inch and 1.50-inch intake and exhaust valves are used. An eight-bolt intake manifold pattern replaces the conventional 12-bolt pattern.
Port and Chamber ShapeThe shape of the


Related to : Chevy 350 Vortec Heads Specs
Chevy 350 Vortec Heads Specs
The cylinder heads for the Vortec 5.7-liter (350-cubic-inch) small block Chevy (SBC) engine were used on GM trucks and vans beginning in 1996. GM engineers designed a cylinder head that became popular with performance enthusiasts. Casting and DesignVortec heads are made from cast iron and incorporate an intake port shape designed to promote "swirl" or turbulence. They share many similarities with older heads, but have intake ports that are slightly larger--170cc versus 160cc. As with many older head designs, 1.94-inch and 1.50-inch intake and exhaust valves are used. An eight-bolt intake manifold pattern replaces the conventional 12-bolt pattern.
Port and Chamber ShapeThe shape of the

96 Chevy Vortec Specs
The Vortec engine come from the General Motors company and use proprietary "vortex technology" that purportedly create superior air/fuel mixing capabilities. This engine is used in many different vehicles manufactured by GM's subsidiaries. One such subsidiary, Chevrolet, used this engine in their 1996 line of pickup trucks, vans and SUVs, including the Blazer, Tahoe and Suburban. Engine TypeThe 1996 Vortec was available as a six-cylinder or an eight-cylinder engine. The model designations were 4300, 5000, 5700 and 7400. The 4300 was a V-6 while the rest were all V-8s. On all models, the engine block and cylinder heads were made of cast iron, and they had two valves per cylinder. The 4300'

305 Chevy Vortec Cam Specs
The Chevrolet 305 Vortec engine was built by GMC. The Vortec engine was featured on the 1996 GMC Sierra C/K 1500. The small-block Chevy (SBC) engine is now sold on the aftermarket. Complete and incomplete SBC engines can be purchased. The incomplete version should be purchased if you wish to make modifications or improve the performance of the engine. Modifications and adjustments should be done by a professional. The engine has been praised for having a large amount of power in a small frame. Camshaft SpecificationsThe Chevy 305 Vortec engine's intake valve measures 1.94 inches. The engine's exhaust valve measures 1.5 inches. The intake manifold has a .325-inch sealing surface. The engin

Chevy 5.7 Litre Vortec Specs & Information
General Motors placed the 5.7 liter L31 Vortec in several of its trucks, including the Chevrolet C/K, the Cadillac Escalade and the GMC Yukon. The L31 was the last engine to come out of the first-generation of Chevy small blocks. Performance SpecificationsThe Vortec generated 255 horsepower at 4,600 rpm and 330 foot-pounds of torque at 2,800 rpm, or the force required to move a vehicle forward. It had a displacement -- the amount of air and fuel exited from an engine during a full cycle --of 5,735 cubic centimeters, and compression ratio -- the maximum engine volume compared to the minimum -- of 9.4 to 1.
ConfigurationThe dual overhead cam L31 had a front longitudinal design, two valve

How Does the Vortec Work in a Chevy Vortec Engine?
Vortec is a trademarked name used by General Motors to refer to a variety of V6 and V8 engines first produced in 1988, and the name continues in use today. Similar to Ford's Triton name, or Ram's Magnum name, the name is merely descriptive in today's automotive applications Origination of the Vortec NameThe first Vortec application occurred in 1988 with GM's 4.3L V6. Vortec in the early applications referred to the adoption of multiport fuel injection by GM, replacing the previously used throttle-body injection. In the early application, GM claimed multiport injection swirled the fuel to create a vortex that improved combustion and fuel economy.
Expansion of UseThe Vortec name spread f

The Difference in Regular Vortec Heads and Fast Burn Heads
Like kids on the playground challenging each other with taunts of "my dad can beat up your dad," custom car enthusiasts continue to look for ways to boast about their favorite custom-built muscle machine. One of the latest innovations for GM engines is the Fast Burn cylinder head. Manufactured using advanced computer technology, Fast Burn heads are designed to give a faster, hotter and more complete fuel burn-off, and thus produce more horsepower. Vortec HeadsGM's Vortec V6 and V8 engines were introduced in 1986. They are installed in the manufacturer's higher horsepower vehicles. The engine uses advanced intake manifold and cylinder head design to induce higher fuel burn-off in each cyl

Torque Specs for the Heads on a 1993 5.7 Chevy
Chevrolet began producing its small-block V8 engines in 1955. The 5.7-liter version of the small-block engine was introduced in 1967, and it was offered in a variety of General Motors cars and trucks, including a number of 1993 Chevrolet vehicles. Cylinder HeadThe cylinder head--often referred to simply as the "head"--rests upon the cylinder block, above the cylinders themselves. Between the block and the head is the head gasket.
TorqueTorque is the measured force (often in pounds) about a center point, applied to a specified radius (such as one foot) from that center.
Cylinder Head Torque SpecsThe cylinder head bolts on 1993 5.7-liter Chevy small-block engine should be tightened to

Chevy Double Hump Heads Specs
General Motors identifies its small-block Chevy cylinder heads with both casting numbers and casting marks. "Double-hump" heads were found on many of its high-performance engines in the 1960s and early 1970s. They were manufactured with larger intake and exhaust port volumes and valves for the period, and engines equipped with them had output ratings of more than 350 horsepower. While there are variations among them, some heads with different casting marks also performed well. Tall Double-Hump Casting MarksThere are two casting marks with two humps -- a tall one and a short one. Heads with the taller casting mark were produced in four casings. Casting numbers typically had seven digits, a

What Is the Difference Between 5.7 Vortec Heads & Regular 350 Heads?
Engine technology is both a passion and an obsession for car engineers and car aficionados alike. This is due to the fact that the modern internal combustion engine is an imperfect design and could benefit from a few tweaks to squeeze out more power and efficiency from the system.
The Vortec line of cylinder heads was introduced by GM in 1988 as a V6 with a 4.3-liter displacement. This technology created a vortex or pressurized swirl of fuel and air mixture inside the combustion chamber that enables the engine to produce more power while still gaining a marginal amount of fuel efficiency. Vortec Means PowerVortec heads instantly added 55

Bowtie Heads Vs. Vortec Heads
Bowtie and Vortec (trademarks of GM) cylinder heads are produced by GM's Chevrolet Division. Both have found favor in high-performance applications such as stock car or drag racing and in high-output street driven vehicles. These designs are made available for small and large displacement engines.
The Bowtie trademark is based on the Chevrolet logo and is used for its factory performance aftermarket parts, which aren't available in production vehicles. The Vortec moniker is used in factory-installed applications, and Vortec engines have been mass produced in millions of cars and trucks. Bowtie HistoryIn addition to mass produced high-performance engines and parts,

How to Find 305 Vortec Heads
Installing Chevrolet 305 Vortec heads on a small block engine is one way to increase power and maximize the performance. If you know where to look, you stand a good chance of being able find a set of heads in good condition. Vortec engines and their repsective components, including the heads, have been in production since 1995. The heads on a 350 Vortec V-8 will also bolt up to the 305 engine and can be used. The difference in the 305 and the 350 is the cylinder bore rather than the block, so most aftermarket parts are interchangeable on these two engines.Difficulty:Moderately ChallengingInstructions Contact Chevrolet via General Motors and inquire about the availability of a new set of 3
TAGS: Find Vortec Heads

The Specifications for Vortec Cylinder Heads
The Vortec moniker came from General Motors' line of engines that created a vortex inside their cylinders to produce better fuel-to-air ratio. It was introduced by General Motors in 1986 through one of their 4.3 liter V6 engines. Since then, GM has continued producing Vortec engines that vary in size and performance. These engines are made with a special cylinder head that allows them to perform better, be more fuel efficient and environment-friendly as well. Cylinder Head DesignAt first glance from the outside a Vortec head looks like most of the other GM engines. The only distinct feature on its outside casing is its 8-bolt pattern valves. A Vortec's combustion chamber is also different

Chevy 4.3L Vortec Specifications
General Motors' 4.3-liter V-6 engine is used in larger models of Chevrolet and GMC pickup trucks, vans and sport utility vehicles. It debuted in 1985. Also known as the Vortec 4300, it was based on the Chevrolet 5.7-liter small-block V-8. GM also manufactures an industrial version of the engine that can run on propane or natural gas. Bore, Stroke and CompressionThe Vortec 4300 has two overhead valves for each of its six cylinders. The bore diameter is 4 inches and stroke length is 3.5 inches. The compression ratio, the ratio of the volume between the piston and cylinder head before and after a compression stroke, is 9.2:1. It operates by sequential fuel injection.
Peformance and Appli

The Chevy 4.3's Vortec Specifications
The Chevy Vortec 262-cubic-inch 4.3 engine, which first appeared in 1986, derives its name from the word "vortex." Chevrolet placed a miniature tornado inside the combustion chamber to create the fuel-air mixture to improve combustion. The 4.3-liter V-6 overhead valve Vortec went through numerous variants with different types of fuel injection. All Vortec 4300s use a cast-iron block with a bore (cylinder diameter) of 4 inches and a stroke (piston traveling distance) of 3.48 inches.
. The LB4Chevy introduced the first Vortec engine, the 4300 LB4, coupled with the first fuel injection system---throttle body injection---in 1988. This engine appeared in the likes of t

How to Improve Chevy 6.0 Vortec Gas Mileage
With higher gas prices here to stay, people are looking for ways to improve the gas mileage of their vehicles. This is especially true of those who own vehicles fitted with large-displacement engines intended for work-oriented applications such as the Chevy 6.0 Vortec, currently used in a number of trucks and SUVs made by General Motors. Gas-saving tips can help owners of this large 8-cylinder engine improve their gas mileage and save money on fuel costs.Difficulty:EasyInstructions Change your driving habits. Abrupt starts, constant hard acceleration and speeding can cause the Vortec 6.0 to consume more fuel than necessary. Smooth starts from a standstill, gentle acceleration and stayi

What Is a 2003 Chevy Vortec Motor?
The 2003 Chevrolet Vortec engine is part of the Vortec engine family that dates to 1996. The 2003 versions featured the 4.2- and 4.3-liter V6 and the 4.8- and 5.3-liter V8 engines. Most 2003 General Motors vehicles were Vortec-equipped. The NameGeneral Motors markets the Vortec engine as using "vortex technology," or more accurately sequential fuel injection, in which the engine's combustion chamber develops a superior fuel/air mix for better fuel efficiency and power.
Vortec V6The 2003 Vortec V6 displaced 4.2 or 4.3 liters. The 4.2-liter version, for example, featured a 3.66-inch bore and 4.01-inch stroke. The compression ratio was 10.1:1 to help develop 275 horsepower and 275 foot-po

1997 Chevy Vortec 5.7L Performance
In 1997 full-size Chevrolet pickup trucks, a 5.7-liter Vortec V8 engine was offered as optional equipment. This engine, paired with a four-speed automatic transmission, provided optimal performance for two- and four-wheel-drive Chevrolet C/K pickup trucks. PerformanceThe 5.7-liter Vortec V-8 engine, paired with a four-speed automatic transmission, is rated at 255 horsepower at 4,600 rpm and 330 foot-pounds of torque at 2,800 rpm. The truck has a payload of 1,656 pounds and a curb weight of 4,544 pounds.
SpecificationsThe 1997 Chevrolet C/K is 236 inches long, 76.8 inches wide and 73.2 inches high. The truck sits on a 155.5-inch wheelbase and is available in two- and four-wheel-drive a

My 350 Chevy Vortec Engine Won't Start
The Chevy 350 Vortec engine is found in different models of trucks. If you can't get your 350 to start, there are a few things that you can look at before you take it to a mechanic. The battery is the most common issue with motors that won't start. If the battery is dead or even has a low charge, the motor will not be able to turn over. Checking the fuel level, the alternator, and the starter is also recommended.Difficulty:EasyInstructions Things You'll Need
Gas
Soda
Wire brush
Jumper cables
New battery

Turn the ignition on your vehicle. Listen for a clicking noise. If you hear a clicking noise, get your car or truck to a mechanic to test the alterna



What Is a 2005 Chevy Silverado Vortec Engine?
The old Chevy small-block has undergone a lot of changes since it debuted in 1955, perhaps none as drastic as its final Vortec incarnation. Named for its swirl- or vortex-inducing combustion chamber design, the Vortec head, like the small-block itself, came about as a result of the search for horsepower by way of efficiency. The 2005 model year was an important one for the Silverado, a transitional period that saw use of both current and previous generation Vortec engines. Vortec Engine BasicsThe Vortec name itself came about in 1988, when GM introduced a new line of cylinder heads designed to enhance combustion efficiency by creating a vortex of air inside the engine's cylinders. While t

How to Change an Intake Manifold on a 5.3 Vortec Chevy
When you remove the intake manifold on the 5.3-liter Vortec Chevrolet, you should remove it as an assembly, along with the throttle body, fuel injectors and fuel injection rail. The intake has to be removed to replace the intake manifold gasket, which does crack and leak after some time. The leak will only get bigger, and cause the engine to run poorly if excess air is sucked in via vacuum, and oil will also leak out onto the engine.Difficulty:ChallengingInstructions Things You'll Need
Drain pan
Set of sockets
Screwdriver
Set of line wrenches
Plastic scraper
Shop rags
Thread locking compound
Torque wrench

Slide the drain pan under the radiat



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