Quick Answer: What Is So Special About A Vortec Engine?

How much horsepower can you get out of a 5.7 Vortec?

You can install the 383 with Vortec heads on it.

The HT383 that was available from GM uses Vortec L31 heads, the GMPP 383 shortblock and the Ramjet 350 roller cam with specs of 196°/206° duration at 0.050″ lift and 0.431″/0.451″ of lift on a 109° LSA produces 340 hp@4500 and 435 lb/ft of torque at 4000rpm..

Why is the 5.3 Vortec a good engine?

5.3L V8 Vortec 5300 & its Reliability The 5.3L V8 Vortec 5300 considered as an engine that is extremely reliable. In fact, many vehicle owners with the engine report having the engine run without minimal issues up 220k miles. Additionally, the engine blocks are very bulletproof too.

Is 200k miles alot for a truck?

As a rule of thumb – the lower the mileage, the better. For gas engines, look for a truck with under 100,000 miles. For diesel, under 200,000 would be just as good. You could go with higher mileage – just pay more attention to the truck’s overall condition in that case.

Is the 5.7 Vortec a good engine?

The best-known and most-beloved has to be the “350” or 5.7-liter version; especially with Chevrolet and GMC trucks. They are powerful, tough, reliable and it is relatively easy to “soup up” or increase their performance.

What is the difference between a 350 and 350 vortec?

Vortec heads instantly added 55 or more horsepower to a regular 350 head with the same displacement. Automotive enthusiasts are quick to note that the 350 and the 5.7 Vortec are essentially the same engine with the same displacement. The 350 designation is the cubic inch measurement that also translates to 5.7 liters.

How long does a Vortec engine last?

Re: Chevy Vortec Engine longevity I know that 6.0L Vortec’s are renowned for going well beyond 300,000 without any major issues.

Why are Vortec heads better?

The L31 Vortec heads have larger ports than the older Gen I cast steel heads, so they outflow the older heads. The Vortec heads are a little bit lighter than the older heads and have a “kidney” or “heart” shaped combustion chamber that is more efficient than the double hump chamber.

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.

When did Chevy stop making Vortec engines?

They have been in production from 1996 till 2002, which means there are a lot of them out there. They are easy to install on older generation I SBC V8.

What truck breaks down most?

More videos on YouTubeJ.D. Power Vehicle Dependability Survey Results 2005-2019Ford F-150Chevrolet Silverado 2500 HD20182015Toyota TacomaChevrolet Silverado42 more rows•Apr 2, 2019

How many miles will a Vortec 5.3 last?

Part of the reliability of this engine stems from its fairly impressive lifespan. A Chevy 5.3 L engine can be expected to last somewhere between 200,000 to 300,000 miles.

What is the best LS engine to build?

The LS3 is the go-to choice for LS engine swappers right now and for good reason; this mill makes great power and is about as reliable as they come. … The CT525 and LS376/515 does away with the standard fuel-injection intake manifold in favor of a carbureted setup.With its iron block, the LSX376-B8 is built for boost.More items…•

What does Vortec engine mean?

Vortec is a trademarked name for a line of engines for General Motors trucks. The name first appeared in a 1994 advertisement for the 1995 model year 4.3 L V6 that used “vortex technology” to create a vortex inside the combustion chamber, creating a better air/fuel atomization.

Is a Vortec engine an LS?

Although Vortec engines are “LS” based they are NOT LS engines IMO. … You can gain an inch or two by removing the plastic engine cover and cutting some of the plastic tabs on top of the Vortec intake manifold. … The block and the heads are LS but the rest of the engines was made to fit a truck not a car.

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.

Is the 8.1 Vortec an LS?

Although we love LS engines, they aren’t exactly built for the same purpose as the Vortec 8.1. A 6.0 LS would make an excellent engine for a high horsepower street car, but not a truck that tows stuff a lot. The Vortec 8.1 was designed for maximum torque at a very low RPM.

Is a Vortec engine good?

5.3L V8 Vortec 5300 Reliability The Vortec 5.3 is widely regarded as extremely reliable, with most engines having a lifespan within the 200k-300k mileage range. I own a 2002 Suburban with the LM7 engine in it and it’s running strong at 220k miles with virtually zero engine issues over my course of ownership.

Is 200k miles alot for a Chevy Silverado?

There are also almost a thousand Silvarados listed with over 200,000 miles on the clock. Even reaching the 100,000 milestone with most cars is considered a good return. It seems pretty clear that this is the least you can expect from a Silverado.

How much HP gain with Vortec heads?

The original answer was related to modifying the heads to accept more valve lift. Our original answer combined the Chevrolet Hot cam with a set of these Vortec heads. Our estimate then and now is around 350-375 horsepower. Your question relates to porting the Vortec heads to improve the flow, which is a great idea.

Will Vortec heads work on older 350?

night rider Veteran Member. Yes the 1996-02 L31 350 vortec heads will bolt to ANY gen 1 350 engine.

What is the best LS motor to swap?

What engine is best for an LS swap? In short, the best engine for your LS or Vortec swap is the one you can afford. Sure, we would all love a shiny new LS3 crate engine from Chevrolet Performance or a rebuilt 5.3L long-block from Summit Racing, but once we crunch the numbers that’s not always possible.