I read an article a number of years ago about how the new Chebby engines (LT1 or LS motors) were reverse cooled. The logic was that the optimum temperature for the heads was 160F but the block liked it warmer, around 220F. I have the article somewhere, so don't hold me to those numbers. Standard Pontiac pumps the water through the block, then into the heads. Reverse cooling would pump the water into the heads first, then into the block. Reverse cooling would optimize engine performance and reduce spark knock.
I've wanted to build a reverse cooled engine big cubic inch Pontiac engine with reverse cooling for some time now. I'm a mechanical design engineer, so I know how to thermocouple for testing and I design using CREO (PRO-E). The only problem is the software is expensive.
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