500 CI LS race block?

I saw this motor advertised in a car craft mag and haven't seen anyone talk about building one. The ad says it can be 500 CI any one have an opinion?
http://www.racingheadservice.com/LSBlock/About.aspx

a few have built it. SAM did one with a LS2 added a plate to top of motor to gain stroke, personally id stay away from it. a 427 can make plenty of power if built right. Sam also has a 434 that dyno'd highest NA recorded

I got ya just thought it would be sweet to have a 500ci ls motor. thought huge numbers can come out of a motor like that with some spray and or boost

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Originally Posted by Quik

a few have built it. SAM did one with a LS2 added a plate to top of motor to gain stroke, personally id stay away from it. a 427 can make plenty of power if built right. Sam also has a 434 that dyno'd highest NA recorded

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I saw a display from the company who does the plates while on the 2009 Power Tour. I thought it was a fairly ingenious way of adding cubes to the motor myself. I don't have a clue as to whether they will stand up to abuse or the larger stroke or whatever ... I just think they took a kewl approach to an old problem of not enough cubes.

Here is one from ERL.

http://www.erlperformance.com/gm-ls-...i-short-blocks

saw and read about this on performanceboats.com

pretty interesting stuff for sure

Wow that erl is 10 grand almost. Pure race motor I would imagine. I wonder if it would be suitable for a dd