Quick Answer: Is The 5.7 Vortec A Good Engine?

What is so special about a Vortec engine?

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..

How much HP does a 5.7 Vortec have?

Performance Specifications. The 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.

How do I know if I have a 5.7 Vortec engine?

One easy way to identify the 5.7L Vortec engine is to examine the cylinder heads. The GM Industrial Vortec cylinder head was made by installing LT1 Corvette ports into an iron casting. The intake manifold bolts on with an 8-bolt pattern, unlike most other 5.7 GM heads that bolt on with a 12-bolt pattern.

What was the last year for the 5.7 Vortec?

20022002 was the last year the 5.7 was used in a vehicle, in North America, but another thing to look out for is the ignition and injection systems have been tweaked over the years.

What does LS mean in engines?

LS is the designation for base model (Luxury Sport) where as LT is luxury trim. The LS family (1–9) are GMs standard small blocks created as a replacement in 1995. 1.2K views.

Is a 5.7 Vortec an LS?

Although Vortec engines are “LS” based they are NOT LS engines IMO. … … The Vortec 5700 L31 (Vin code 8th digit “R”) is a V8 truck engine. Displacement is 5.7 L. It is the last production Generation I small-block from Chevrolet.

What year is the best Chevy 350 engine?

L31 (2002) From a purely technical standpoint, the most recent version of the Chevy 350 would naturally be the best of the bunch. Marketed as the “Vortec 5700” engine, but known internally by the moniker of L31, this engine was used primarily in GM vans and trucks until 2002.

How much power can a Vortec 350 handle?

Originally Answered: How much horsepower does a 350 Vortec engine have? Somewhere around the 240 HP region ( In stock as in installed trim ) . on a Dyno with no accessories on it they dyno at about the 300HP region. But the heads can flow well enough for 400HP.

What is the difference between LS and vortec?

The Vortec truck harness has a large portion up on top of the intake manifold, is supported by it, and is covered or hidden by the plastic engine cover. The LS engine harness is configured much differently and the intake manifold is exposed and uses valve covers to dress up the engine.