I so want to do this (well an engine build, not nec a big stroker). I'll def be watching this thread to see how it all turns out. I might have found a doner complete raptor motor. Its pretty cheap, but it says the motor is for parts. they say the motor sized up, but they could turn it but heard "squeeks" when they did. but it has heads, cams, pan, crank. all that stuff. no holes in the block. I figure I going to be machining it and dropping new rods/pistons in anyway (hopefully some overbore). any thoughts? any reason why that block would be trash if it can turn? and no holes?. they don't seem to keen to pull the heads off and send me some pics of the pistons/cyl walls. that would be ideal.