The earlier 12v Si cars (your CRX, my Civic) are rated at 91hp. There are no 16v heads that will fit, to my knowledge. I have been looking, but the problem is in our distributor. It will not bolt to any later 16v heads, so the only way to run a 16v head on our block would be to do a full OBD-0 electronics update, very NOT fun. For all that effort, you could just drop in an 88-89 OBD-O D16A1 engine then, but why bother when you can just use a pre-OBD 86-87 D16A1?

Oh, and ISP James.... why would anyone in the right mind want to ditch a G2 for a CRX? I'm sorry, but I would take the Integra any day of the week. I had one, they look a million times better then a CRX IMHO.