Hi.  I just broke the crank in my GN and was planning on pulling the engine and rebuilding it.  Obviously this 4.5 engine is quite a monster.  Will it do ok in my moderately modded GN chassis?  Is there anything that won't work?  Factory A/C, etc.?   I'm in Atlanta so I'll call you in a few hours to discuss.   Thanks, Gerry 404-680-9789