1993 chevy 3500hd rollback 6.5 diesel over heating
 

So I installed brand new reinforced heads, not that remanufactured crap, new head bolts, new head gaskets, upgraded the water pump to 132gpm , duramax 9 blade clutch fan, new fan clutch, and I've bleed the cooling system on this truck , new thermostat 195 and still it's over heating, the truck will reach temps of 220 240 especially accelerating and up hill is the worst, I'm having to keep adding antifreeze to the system, heat works great, I've installed an aftermarket temp gauge, im at a loss on what's going on and now I see I got oil comming out of my oil tube and soaking the driver side head and going on the new alternator, I'm really at a loss here, I've own 2 other diesel trucks 7.3 and never seen anything like this before, it must be a chevy thing, I'm really stumped , I've done sank over 2 grand in this truck, I'd really like to get back on the road, p.s. head gaskets are not blown due to if it was the radiator hose or radiator its self would be exploded or the upper radiator hose would had blown off