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How can you identify which heads are on a car (specifically if 243 heads) if the #s have been removed from the pads at the end of the heads?
As I had posted in the past, when my wife's LS1 car dyno'd unexpectedly high, we looked at the heads to see which heads it had, and all the #s had been ground off the pads (you could see the grinding marks)
Is there some #s under the valve cover to identify the heads?
hmmm; So the 243 heads have D shaped exhaust ports?
I can't believe i hadn't heard that before But then I guess I've never really seen any Z06 heads before.