Question: How Much Horsepower Can You Get Out Of A 5.7 Vortec?

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’s the biggest cam for a stock 350?

What is the biggest cam for stock 350? The biggest cam will be the COMP Cams CL12-600-4 Thumpr 227/241 Hydraulic Flat Cam. This can also be regarded as the best cam for stock 350 chevy.

How can I get more horsepower out of my 350 vortec?

No matter what application your Chevy 350 motor is in, a few simple steps can get you more better performance and higher horsepower.Modify your air intake. … Modify your exhaust. … Change your camshafts and valve train. … Purchase new cylinder heads, or have yours ported and polished. … Have your motor rebuilt and blueprinted.

How big of a cam can I put in a stock 350 vortec?

Unmodified heads w/stock retainers and seals will allow somewhere between 0.420″ and 0.470″ lift- but this has to be verified on a per head basis.

How long do Vortec engines 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.

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.

How many miles will a 350 Chevy last?

229k miles is not unheard of for a properly maintained 350. You could do a compression test and leak down test to analyze the health of the motor.

Can you tune a 5.7 Vortec?

Hptuners is capable of tuning the 1998-2000 Vortec 5.7 but will not work on the 96-97 models that have the “black box” PCMs. You can tune the 98-99 GMT400 trucks, but only Tunercat 2, JET DST, Westers GMT can tune the 96-97 GMT400 trucks.

What was the last year for the 5.7 Vortec?

Re: last year the GM 350 5.7l was used in a chevy/gmc? 1998 was the last year it was used in Silverados being replaced in 99 by the 5.3. It was used in the “Classic” (non-silverado) trucks until 2000. 2002 was the last year it was used in the express vans.

What is so special about a Vortec engine?

The redesigned cylinder heads of a Vortec engine provides for improved combustion efficiency. The intake ports (reshaped) of the engine provides for better cylinder filling and fuel atomization by promoting higher air flow velocities to the combustion chambers via the ports.

How much lift can Vortec heads handle?

The factory Vortec heads use a light, single-wire valvespring with a damper that generates between 70 and 80 pounds of load on the seat. Because these heads are meant to work with a 1.5:1 rocker, their tall valve guides can only handle maximum valve lifts of around 0.420 inch.

How much HP 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 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.

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 horsepower does 5.3 Vortec have?

Gen III – LM7, L59, LM4, L335.3L Vortec Gen III Engine SpecsLM7L33Horsepower:285 hp @ 5200 RPM310 hp @ 5200 RPMTorque:325 lb.-ft. @ 4000 RPM335 lb.-ft. @ 4000 RPMBore and Stroke (in / mm):3.78 x 3.62 / 96 x 923.78 x 3.62 / 96 x 92Compression Ratio:9.5:19.6:16 more rows