Valvetrain Geometry

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If someone is good with the computer maybe they can grab the pictures and post them side by each. And if they are really good maybe they can draw in the centers and check the nominal ratios.

I suck at the computer so I’m out on that.

There was supposed to be a ratio change with the new rockers according to Mike and the guy at PRW whose name I forgot. If EarlyA’s numbers are correct then Im doubting they increased the ratio.

I can’t check anything on my end because I needed a different correction for my new heads so I’m waiting for Mike to bang them out and get them here.

Once they are here I’ll mock my junk up for the millionth time and see what I get. With a .3875 lobe and a 1.6 rocker Im hoping beyond hope to net .580 lift before lash. If I get that I’ll be happy.
I like how the roller tip protrudes farther than the arms on the old design. With the new design the roller only protrudes a little bit on the bottom. With a 3/8" stem and high lift there is no room for side to side motion of the rocker. The arms will hit the valve stem quite easily.

New rocker design with 3/8" valve shown below.

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