i need to know which one of them would be better to bult bottom end and plan to use greddy turbo kits ... but i dont know which one i want to go with... i heard y8 has bad bearing... i want to go with a6 block and put low compression and eagle rods... but i dont know if it s would be more reliable on streetable... i have y8 and a6 block at my garage and havent decide which one i should go with... anyone has a option which i should have gone built with???

thanks

 

I have a mini me and it pings already. The raised compression plus boost on one of these setups probably wouldn't last too long. Id say go with the y8 or z6 complete motor.

 

okay if i m goes with y8 complete motor but people sazying that bearing is easily failure...what kind aftermaket can i get a bearing for my y8 block?

 

Im not really getting what your saying, but y8 or z6 neither really are known for spinning bearings(rod bearings if thats what you mean). They are both decently high reving engines, so you need to keep it well lubed, which is the #1 cause of rod bearing spinning, lack of oil mixed with some high reving. All motors are that way.