dont listen to ppl like this.... block is indeed an 88mm "sleeve" bore and mains are 50mm i talked to golded eagle and this block can easily be fixed for $250 with no problems or worries... only reason im not fixing it right now is bc i have 3 weeks to have car back together and already purchasing another block... Im not going to give it away simply bc its a simple fix and is done all the time. Nothing out of the ordinary. Ill keep the block for a backup before i let it go any cheaper. You can not even buy the sleeves for this price, not even to mention putting them in. If anyone want any real info about this pm me or even mike jones as he has seen it, and is the original builder of me purchasing this block, and its nemos old block. Block did not have any alignment, wear, cracks, leaking, or oiling issues. I tore this block up simply to me having tranny problems and i have some data logs of 12 and 13k revs wich broke the oil pump. Or even the fact of the hp range i was at and throwing nitrious on it didnt help the oil pump stay together either..