Engines Vortec 4300 4.3L V8 (LU3) Vortec 6000 6.0L V8 (LQ4)
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Type 4.3-liter V8 6.0-liter V8
Displacement (cu in / cc) 262 / 4293 364 / 5967
Bore & stroke (in / mm) 4 x 3.48 / 101.6 x 88.4 4 x 3.62 / 101.6 x 92
Block material cast iron cast iron
How do I know what engine is in my Silverado?
- Look at the vehicle identification number (VIN).
- Write down the vehicle identification number carefully and vertically.
- Begin to decode the vehicle identification number.
- Locate the manufacturer decoder website.
- Determine the engine type.
What engine is in a 2003 Chevy Silverado 1500 z71?
Chevy's 4.8-liter V8 produced 270 horsepower at 5,200 rpm and 285 foot-pounds of torque at 4,000 rpm. An optional 5.3-liter V8 generated 285 horses at 5,200 rpm and 325 foot-pounds of torque at 4,000 rpm.
What Gen is a 2003 Silverado?
First Generation Chevy Silverado (1998 2007) The first generation Silverado ran until the 2007 model year, with only a slight refresh occurring in 2003, 2004, and another in 2006.
How long will a 5.3 L V8 last?
A Chevrolet 5.3L engine should be able to last 200,000 to 300,000 miles depending on how you care for the engine. These engines were first introduced in 1999 and they were used through the 2009 model year. They have been referred to as the Vortec 5300 when they were used in trucks.
How much horsepower does a 5.3 V 8 have?
355 horsepower
Is the GMC 5.3 A good engine?
The 5.3 Chevy is a pretty reliable engine that can deliver a lot of performance to the table. Because it's rare to see how a small block gasoline engine can make so much power and torque. The biggest problem with this engine is the AFM system.Sep 2, 2021
How much hp does a 2003 5.3 Vortec have?
5.3 Vortec Performance Specs While the power output from the Gen IV 5.3 L Vortec varied, the maximum horsepower from this engine is 320 horsepower and 335 lb-ft of torque. The Gen III and Gen IV versions of the Vortec used aluminum alloy heads, while the block material varied depending on application.
How much hp can you get out of a 5.3 Vortec?
How much horsepower can a 5.3 make? The normally aspirated 5.3L generates 503 horsepower at 6,600 rpm and 441 lb-ft of torque at 5,700 rpm. Since the stock 5.3L can only make maximum output at 5,400 rpm, the later cylinder head, cams, and intake ports shift the power curve further up the rev range.
How much hp can a stock 5.3 take?
If we were to run the 5.3L in stock trim, the resulting power output would be around 360 hp (on this dyno, the way we test).
Is 5.3 or 5.7 engine better?
IMO-The 5.3 is definately a faster motor but the 5.7 seems to handle weight better. My 5.3 averages about 17mpg while and I got about 15mpg with my 5.7. It is hard to get a good comparison though. The 5.7 was a Z71 regular cab, short bed with an auto and 3.73s.
Is a Vortec a V6?
Vortec is a trademarked name for a line of gasoline engines for General Motors trucks. The name first appeared in an advertisement for the 1985 model year 4.3 L V6 that used "vortex technology" to create a vortex inside the combustion chamber, creating a better air/fuel atomization.
What is a 5.3 Vortec engine called?
5.3 L. The Vortec 5300, or LM7/L59/LM4, is a V-8 truck engine. It is a longer-stroked by 9 mm (0.35 in) version of the Vortec 4800 and replaced the L31.
What size engine is a 5.3 L?
The GM 5.3L engine (326.1 ci, 3.78-inch bore 3.62-inch stroke) is by far the most-produced displacement in GM's Gen III, IV, and V family tree. There are millions of these lying around in the salvage-yard—and like all "LS"-based engines, they can produce big power even in well-used, 100,000-mile trim.Oct 1, 2019