Yeah, the idea is that we have all done little things differently. This gives rise to the variations in HP ranges. Take it for what it's worth. So far with just the block swap, SVT heads and stock injection systemt the power can be anywhere from 185wHP to 240wHP. Thought the highest is with fuel pressure adjusted.
The higher HP engines have taken the larger valves found in the 3L heads and stuck them into the 2.5 heads with appropriate porting and such. There are other factors, like the compression ratio as well.
warmonger
