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I am getting ready to buy new pushrods for my 390 build. I have an edelbrock 2106 with lifters and springs installed. I want to make sure that I am going to buy the right size pushrods and avoid issues like bending or even lifter or valve damage.
I put together a spreadsheet that shows the measurement I got with the Comp Cams pushrod size tool. Also on the spreadsheet I calculated the lifter preload that i would get by subtracting the checker tool measurement from the new pushrod sizes (2 different options).
The heads have been serviced, resurfaced and a couple of new valve seats had to be installed. It has been suggested that I take another set of the rocker arm oil baffles and cut the wavy part out and use them as a shim to raise the rocker assembly approximately .040. Is this a good idea? The preload amounts look pretty high to me.
Can anyone point me in the right direction? Thanks!
