I've got a spare engine which came with the Z that I purchased several years back. The spare was an engine that was used for "racing" but there were no details on the internals or what kind of racing. I'm looking for a project on the Z and an excuse to crack open an engine to get some hands on learning. Looking for opinions on what to do. (slow day at work) -swap it in and see how it runs -open it up to see if it's bone stock or not -tear it down for no reason besides putting it all back together for fun and learning Side note, currently have a running L28 in the car now and have never pulled an engine apart.