What is L31 engine?

Unlike other 5.7-liter V8s that GM manufactures, the L31 features cylinder heads that are compatible with older models, making it a popular upgrade. The L31 was available from 1955 until 1969, but was reintroduced years later and was available until 2002, when the 5.3-liter LM7 engine replaced it.

What is the most powerful Vortec engine?

Our fastest crate engine ever As the power behind the 2019 Corvette ZR1, the new supercharged 6.2L LT5 represents the pinnacle of Chevrolet’s performance: It’s the most powerful engine ever offered in a Chevy production vehicle.

How much HP does a Vortec 350 have?

The ’96-’00 350ci Vortec 5700 engines enjoy lots of aftermarket support to help improve the 255 hp and 330 lb-ft of torque they’re rated for at the crank. An engine swap can be quite costly, so putting even a quarter of those funds into your Vortec 350 engine could get you where you want to be.

Is a Vortec engine a 350?

Vortec Means Power 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 much HP does a 6.2 Vortec have?

Available on the Chevrolet Silverado 1500 and GMC Sierra 1500, the 6.2-liter V8 with DFM offers 420 horsepower with 460 pound-feet of torque. No other half-ton full-sized pickup offers this kind of power with its maximum capability and capacity in towing and payload.

What is a Chevy Vortec engine?

Vortec is a trademarked name for a line of 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. Now it is used on a wide range of engines.

What is a 5.7 Vortec engine?

The Vortec 5700 L31 (VIN code 8th digit “R”) is a 5.7L V8 truck engine. It is Chevrolet’s last production Generation I small-block. The cylinder heads feature combustion chambers and intake ports very similar to those of the LT1 V8, but lacking the LT1’s reverse-flow cooling and higher compression.

When did Chevy stop using the L31 engine?

From 1996 until 2002 the L31 the Chevrolet Express and the GMC Savanna carried this engine. The engine was featured in Chevrolet and GM full-size trucks, Suburbans, the Chevrolet Tahoe and the GMC Yukon from 1996 until 1999. Anne Davis writes pieces on domestic and international travel, automotive maintenance, education and health.

Is the L31 Vortec HD 350 crate engine marine use?

This engine is not intended for marine usage. This engine features new components, brand new complete long block engine backed by a limited 3-year, 100,000 mile GM warranty when installed into an approved GM application.

What’s the compression ratio on a Chevrolet L31?

Bore, Stroke and Compression Ratio In 2002 the L31 had a bore of 4.00 inches and a stroke of 3.48 inches. Bore refers to the diameter of the engine’s eight cylinders, and stroke refers to the distance that the pistons inside the cylinders travel from top to bottom. The 5.3-liter V8 engine has a compression ratio of 9.4 to 1.