That made me drool a little. If I was willing to spend more, I'd be temped to drop in one of the 6.0L chevy truck engines. They can be gotten fairly cheap and with about $5000 including the cost of the engine you can get 500HP N/A. Chevy magazine (my father reads it) picked up on for $1200 and swapped out the cam, bolted on a set of complete LS7 heads from GM preformance, and a few other goods. They put it on an engine dyno and had over 500 at the crank.