The ONLY difference between an LQ4 and LQ9 is the piston! The LQ4 piston is dished where as the LQ9 is a flat-top increasing compression to 10:1, and HP to 345 factory. ... The LQ9 is a limited production engine and VERY desirable as it is the HO 6.0L and comes with a premium price.
Which LS engine is most reliable?
- 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.
Is the 6.0 LS a good engine?
Overall, the 6.0 vortec is an extremely dependable and reliable motor. These engines frequently last beyond 300,000 miles with minimal issues beyond regular maintenance. However, making it to 300,000 miles will likely require some non-engine repairs and maintenance, such as suspension components.2020-05-13
How much horsepower can you get out of a 6.0 Vortec?
They can handle about 800 hp and 7,000 rpm in boosted applications (at least for a while). They are likely to bend before they break when subjected to real track conditions. If you're getting forged pistons, upgrade to forged connecting rods at the same time.2018-08-17