BobsYourUncle wrote:
Not sure what your 6.0 gasser has, but my Dmax has aluminum heads...
The GM 6.0L has aluminum heads. I never overheated mine but the temp did increase on a few hill climbs I did while towing.
The big claim to fame on the 6.0's is breaking exhaust manifold bolts. I don't know if it's the head flexing, the manifold, or just low grade bolts, but there are few 6.0L GM engines that haven't popped at least the front-most and rear-most exhaust manifold bolts. Maybe on later years GM fixed it but I know from '99-'05 models it's extremely common.
KJ
