I pretty much figured it was a heat issue where the standard pickup with the 460 has more room for air flow,not much, but any counts.The 460 has a wonderful reputation for being powerful and trouble free with the proper care.
Most class C's are overloaded or at max on the 350/450 chassis..I run at 10,800 with a 10,500 GVWR loaded full of water/gas/clothes/food/the wife and two dogs etc, ready to camp with a 21ft C.Ad towing and your working your engine, which needs the air flow to work properly without heating up..
I can remember the days of turning off the AC when going up a steep hill or even running the heater for the water to circulate better and using the gears and not pushing it..All that remains in my noggin and I still use it when needed.Appropriate transmission coolers also are a must.
It is clear to me now why it happens more in RV's than in pickups,if at all, with the same 460 engine.
I hope the opp of this thread has an good outcome to his 460 problem.His problem has me, and I am sure,others with the 460 in a class C, wondering how not to have this same problem.
