Camaro ss 2001

I already post thread before

https://ls1tech.com/forums/generatio...e-exhaust.html

now i checked the engine oil level from dip stick it seems that the oil is decreasing?!! wtf? (the reading on dip stick on add postion) and i cleaned the the raditor and sub raditor by taking the dirty mixture of water/oil from them but still there's white smoke when I rev it and new thing is that the oil level is decreasing which I didnt face it in the 1st time when the engine mixed oil and water in both engine and raditor

I did overhauling before monthe's which cost me a lot but this time im very frustrated and dont know what to do?? eventhough i replaced most of the things in it (the engine)

do i have to throw the engine? and purchase new one or I've make overhauling agian which is costy??

note: there's no leak from the engine,also im thinking to purchase 572 or 454 or any thing new from manufactor's