call Jack cotton......knows everything you need to do it. I've beat on my rpe built motor for two years with only a head gasket once. Like mentioned above, the engine is only the center piece of a lot of supporting parts. If you decide to go with your 109 then you def. need good internals to "beat" on it over and over again ie steel crank, girdle, caps, rods ect.....so your not picking up parts at about 60 ft. I've got several grand in just the engine alone and then with turbo, heads, suspension, you'll spend more than you know quick. Don't forget the brakes !! Its fun to go fast, but I like stopping just as much !!:smile: