LSx bang for your buck. Whats the best value?

[N2TRUX]

I am researching an LSx swap in a squarebody truck. I have read lots of posts and gained a lot of info. I can see that very quickly the cost to do a LSx conversion has come down due to availability of massed produced conversion items that were once only available from limited sources. Combine that with some very innovative swappers tracking down alternatives parts, the swap is becoming much more affordable.

With all that said the one variable I see is the actual cost of the engine and transmission itself. I know there are super cheap deals to be had for the expert scrounger, but lets throw out the highs and lows to find a middle ground.

If I am looking for a truck that wont be used for heavy hauling, track racing, or any other above average scenario, whats the best bang for the buck? I know the base 4.8 and 5.3 are more common, hence they are cheaper. The 6.0 is next in price and availability, followed by the much sought after 6.2.

Lets say I'm looking to net a realistic goal of 450 HP so we will use that as a benchmark. I have been told the 6.2 can do that with headers and a tune. What will it take to get a base 6.0 there? How much more to bring the 4.8 or 5.3 to that level?

Not trying to start a pissin contest over what motor is better, just real world facts on what I should be looking for. As much as I want a 6.2 they dont seem to be abundant at a fair price. I can buy a 4.8 or 5.3 for 600-700 but how much will it take to get that 450hp?

Discuss....