Some random thoughts came to mind..
So it was not mainly the heat that cracks the heads of the redblock but lack of material from the bigger exhaust valves.
So with brass tubing between the valves, that pretty much solves the cracked head problem yeah?
And with bigger exhaust valves, that would be a better candidate for a turbo because it dissipates the heat and exhaust better and faster yeah?
And I read that the 6.2 Redblock heads came with an extra coolant passage that caused premature head gasket failure. There was a recall I read that GM fixed this issue by putting a freeze Plug type cap on that extra passage to fix the problem. Anyone know more info or got pics of this?
So new Theory…
Bigger exhaust valves=Faster spooling, more boost, less heat, lower egts and more efficiency? Sound correct?
So in theory, the redblock heads should be lock n stitched and taken to a machine shop, cleaned, cap off the extra coolant port per Gm recall, shaved and valve job done and would be considered the best 6.2 heads yeah?
Or drop the cash for new smaller valve heads?
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