d15b1 head change
 

I have a y7 and y8 head. D15b1 block and a complete d15b2 in the car. B2 head sounds like someones jump ropping with a chain 550k+ on odometer. not sure the status of rebuilds or ect. Going to try to adjust valves.
Wondering about putting y heads on one of the blocks. Have 2 y7 blocks also, but going into 91crx
Will y8 head go on d15b1 or b2?