So I have run into a small dilemma but it might be OK.
So the SOHC 6G72 engine has cylinder heads comprised of 1 camshaft per head and 2 rocker sliders spring loaded with camshaft caps in the middle and end. Typically on say, the DOHC 6G72, the camshaft caps are line cut, drilled, and tapped for camshaft dowels. When this process happens, there could be slight variations in the line cut process and when mixing up camshaft caps (have heard a lot of people mixing them up) then the camshafts can bind because the cap bore now has a protrusion that binds the camshaft. On the SOHC however, is this the case? Every SOHC head has the same camshaft cap position, rocker sliders, springs, etc.
My scenario is that I picked up a second set of heads without the camshaft stay hardware, springs, rockers, lifters, etc in the heads. My plan was to use this hardware on the new heads. I was advised by the engine builder that we need to check to see if the cam fits because he is thinking the line bore on the camshaft caps will be off in comparison to the old heads. Is this really true? Or do I have nothing to worry about? If it comes to line boring, I will do it for sure.
I guess I have heard that they recommend keeping all of the heads hardware with the same head, which is fine, but in theory, I think the SOHC defeats this because the camshaft cap hardware is standard spec in every sense including spacing. What's your take on this and if there are any pros in here, that would be helpful.