i just bought a crx and the guy i bought it from said everything was stock except the i/e/h well i was cleaning it up a bit a saw the block was stamped zc? well did they make a sohc non *****h zc? or do i have a *****h and its just not wired up? what should i look for to see what kind of top end i have? the vin show 88 crx si, but this is not an a6. if this is a zc block with a6 top (stupid, if thats possible) could i put a y8 on there? I not sure if that makes complete sense but maybe someone understands? Thanks.