I have both a YZ and a WS ram air III blocks YZ is just a block with 4 bolt caps and original crank. has been hot tanked and magged and is good. I have machine shop paper work to go with. 1750 obo WS is a running motor currently. I have video of it running, sounds great! only original parts are block and heads however. will sell as a long block. 2500 obo email for pics and info raiiita@yahoo.com