ok let me clear some of this up... Since I have run stroker and non stroker.
Storker kits do generate more heat not a lot more but they do generate more heat due to a longer stroke.
There is no correlation between closed deck and open deck to heating issues. The closed deck while reinforcing the block does not hamper the cooling capabilities of the motor. All cooling channels remain intact and there is no obstruction.
However, a closed deck does allow the heat to transfer more easily to the outside of the block to dissipate. Now there are a few things people can do to help with that dissipation including thermal dispersal coating on the block, inter-cooler and intake tubes.
As most of you know the VVEL generates a good bit of heat and if you have taken VVEL apart you would see why. I know RJ MFG is looking into adding oil squirters in the heads to help with cooling but this is simply just in a testing phase at this point.
The Problem some people are seeing is a combination of elements leading to hotter than normal operating temperatures. Please remember when you are pushing a block past its recommended operating cycles you will face obstacles.
Items that will cause more heat in the block:
1. improper mix of coolant distilled water
2. Long Stroke (stroker kits)
3. VVEL
4. Large amounts of boost and no head work
5. Higher boost on lower octane
6. Inefficient turbo kits and hot IATs
7. Non Ceramic Coated or heat wrapped turbo manifolds
8. wrong headgaskets
9 wrong oil viscosity
10. not enough airflow to radiator
11. too small of an oil cooler.
These are just a few...
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