Question: How Much HP Can A 5.3 LS Make?

What year LS motor is the best?

Best LS EnginesLS9/LSA: Made for the 2009-2013 Corvette ZR1, the LS9 is a supercharged 6.2L engine rated at 638 horsepower — the most powerful of all small blocks.

LS1: This is the one that started it all.

LS7: Introduced in 2005, the LS7 sported 427 cubic inches, making it the largest small block ever.More items…•.

Are 5.3 and 6.0 blocks the same?

Flassh, Actually the 6.0 motor is the same small block that the 5.3 utilizes. The 5.3 is 327 cu. in. and the 6.0 is the same block bored to a 366 cu.

What is the best LS block to build?

The most desirable castings are the 6.0L LQ9 or LQ4 truck blocks, which are production cast iron blocks, with 6-bolt iron main bearing caps, 9.240-inch deck height, and offer a 4.00-inch bore.

How much horsepower can a 5.3 make?

The normally aspirated 5.3L eventually produced 503 hp at 6,600 rpm and 441 lb-ft of torque at 5,700 rpm. The new heads, cam, and intake shifted the power curve higher in the rev range, as a stock 5.3L will produce peak power at just 5,400 rpm.

Is a 5.3 Vortec an LS?

It would instead be the series of iron-block, aluminum-head LS engines produced under the Vortec brand name for Chevrolet, GMC, Cadillac, and Hummer trucks that would greatly expand the family. These are found in displacements that included 4.8-liters (LR4), 5.3-liters (LM7, L59, LM4), and 6.0-liters (LQ4, LQ9).

Is the 5.3 a good motor?

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 a 5.3 Chevy engine a 327?

Chevy used to have a 327 which was the 5.4L engine. Now they call it the 5.3L engine so it is the old 327 down sized slightly to a 323.

How much HP can a stock 6.0 LS handle?

One of the main things to realize when building a stout LS engine is that the stock parts themselves can easily handle 500 to 600 hp (depending on the engine chosen to start with). Since the crank and rods are cast items, many jump to the conclusion that they need to be replaced for reliability.

How much HP does a stroker kit add?

A traditional 4.21/ 6.625/3.0 stroker kit ups the CID to 455 and raises the SCR to around 8.8-9.1:1- with the addition of a high-lift aftermarket cam, upgraded ignition, headers and a larger exhaust, an output of over 375-425 hp is not only possible, but very attainable, even w/ stock heads.

How do I get more power out of my 5.3 LS?

Install a nitrous oxide or methanol injection system. For advanced racers and custom builders, nitrous oxide added to any 5.3L Vortec engine produces prodigious power gains. Forced-induction systems benefit greatly from the additional cooling provided by methanol injection, as well.

How much can you bore a 5.3 LS motor?

LS Engine Bore & Stroke ChartEngine SizeBoreStroke5.3L (325 c.i.d.)3.780 in.3.622 in.5.7L (346 c.i.d.)3.898 in.3.622 in.6.0L (364 c.i.d.)4.000 in.3.622 in.6.2L (376 c.i.d.)4.065 in.3.622 in.2 more rows•Jan 5, 2018

What is the best LS Motor 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…•