ok i have a blown z6 in my new couope and i found one hell of a deal on a y7 bottom end (50.00) and it only has 110k on it.i was wanting to know if these y7's had decent bottom ends compared to the jdm d15b....i was running the d15b ion my hatch for a while with 10psi and never once had a problem out of it and it was run hard.but i am just wanting to know what you guys that had experiance with the y7 thought about it before i go pushing its limits.....i want it compared to the z6,b7 etc etc thanks.

i will also be using my y8 intake mani and z6 head on this bottom end..