COMMON 23* VALVE SPACING IS GENERALLY REFERRED TO AS 20/30 SOME HEADS SUCH AS THE 11X HEADS ARE 60/40,MY QUESTION IS:what is the valve spacing on the RHS Raised runner steel head?
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COMMON 23* VALVE SPACING IS GENERALLY REFERRED TO AS 20/30 SOME HEADS SUCH AS THE 11X HEADS ARE 60/40,MY QUESTION IS:what is the valve spacing on the RHS Raised runner steel head?
Are you speaking of the 14* raised runner or the 23* raised runner?
Whole statement and question was concerning 23*
The 23degree RR head is 60/40 valve spacing.
I found the same info, the RHS raised runner steel head is a 60/40. Also, if it is the same head you are talking about, I read that it is angle milled and actually has a 21° valve angle?