2020 Chevy 2500HD 6.6 Gaseser data.
The whole video discusses the Duramax and chassis as well. But the beginning discusses the new 6.6 which I am interested in it to replace my 6.0 gasser. I don't really need a diesel and only use my...
Forum Discussion
ksss wrote:Jayco23FB wrote:
I was interested in the 6.6 gasser to replace my 6.0 as well until I found out the 6.6 gas will have siamesed cylinders. I remember all the overheat problems the small block 400 had using siamesed cylinders. I think I will pass on this one.
This motor is not going to overheat. Comparing the small block 400 to the 6.6 siamesed cylinders or not is ridiculous, sorry but it is. The 6.6 will replace the 6.0 and so the shoes to fill are huge, and GM is certainly aware of that. They are not going to release this motor that has been years in the making, and be used in HD pickups if it overheats. It will be dialed in and ready to pickup where the 6.0 leaves off.
I am guessing if your condemning a motor that has not even hit the ground yet, by comparing it to one built 40 years ago, your really not in the market anyway.
Also the cooling jackets between the cylinders are connected. It will be fine, it is nothing like a 400. I do find the high pressure full pump interesting as it is mechanical.
