Yes, I know. LS7s and L98/LS3 heads have D ports while the others are round.
The issue I am talking about is the valve angle. LS7 heads are 12 degree and LS3/L98s/ LS1-6 are 15 degree.
My question is does the valve angle have have any bearing on the external surface of the head that the header flange will mount to?
Obviously if it does have bearing than it would change the way LS headers fit different heads. I don't think it does have any bearing ( I think the angle is referrring to the angle the valves are oriented to the combustion chamber), i just want to be sure.
Thanks,
Jim
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