I just got a stock engine for an87 gn. I want to build it mainly for one fast ass street car, and the occasional trip to the strip ( maybe once or twice a month) and while there, rip off some high 10/ low 11 passes. I plan on upgrading the timing chain to a double rollor, getting the heads ported and polished, and I am looking into either steel caps or a girdle to strengthen the bottom end. Where do I get the caps and girdle? Are the caps as simple to install as drop the pan and put the things in? Is the girdle something I can install myself? I want to keep cost down. Any replies will be helpfull.