Sorry for the miss understanding Luke, as MYSTIK said its a AE92 sedan that had a 4A-FC in it converted it to the 100KW 4AGE started it and it sounded funny so I took it for a drive and found out the gearbox is stuffed and the head has a knocking noise. I got told that its my shims the head is fine I just can't be stuffed mucking around with lifters and springs. I just wanted to know if the 20v st head would fit on the 100kw block or should I just put the whole engine in it.