These are some nice BEEFY units. They come fully assembled with shafts, spacers and snap rings that hold the whole shebang together. Bolted 'em in place, lashed the valves and fired that puppy up. They use a smaller diameter shaft and have some major meat in the fulcrum point. I'm using the MP .557" solid, with the Ersons it will be in the neighborhood of .594" now. Engine sounds nice and crisp, we'll see how it runs tomorrow. Installed spring height is 1.885" coil bind is at 1.160", so there is plenty of room for a cam up to .620". The valve springs are a measured 132# on the seat and 320# open. The erson setup is a pretty sophisticated setup, you can tell that someone put some engineering into them.
Installed the Erson roller rocker setup E918532 1.6 ratio
- Thread starter snook
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