I love to work on cars (OLD hotrodder), computers (OLD hacker), and watch movies.
If there is a combo of engine, vehicle that you can think of, I've probably worked on it. Try a BOSS 302 and Corvair transaxle in a VW bug. Or Olds 455 and TH400 in a VW Bus. How about Pontiac 400 and TH400 in a Dodge truck? 400HP Chevy 350 in a Vega Station Wagon? Chevy 305ci in an S-10 p/u? See, done a few oddities.