Does anybody have one of these engines or have any 1st hand knowledge about the company? They also offer a 383 supercharged engine and will soon have the LSA 6.2 supercharged engine which will have 520hp.

This company offers a 3 year warranty on their engines. Talked to the company on pricing and the LSA will be around $20,000, the 6.0 and 383 are about the same, a little less. They even have custom paint. They are more popular in jet boats. I don't see why they can't be used in an offshore performance boat. All engines come with closed cooling.

If it were me, I would just build the motor to make the power N/A for less than 1/2 the price.

yep,

If you want to spend that kind of money I will spend a little more and go for the raylar lsm 550 none blown ,light weight and more hp.

hell my 01 camaro with the stock bottom end, stock head ls1 with a nice sized cam and bolt ons put down 422 rwhp which puts it over 500 crank