Changing Head on OS .91 VR-DF
I have just received my used Top Gun F-15 and even though it is setup for a Byron pusher fan, the engine has the small head. I have a new large heatsink Byron head for an OS .91 and want to change it over. Is there anything I should look out for or be careful of when pulling the old small head off the engine and swapping to the new heatsink head? Can I re-use the head bolts?