Reply to "Warning rocker arm pedestals machining on 4V heads"

rene4406Member

I know aluminum cylinder heads perform better and end up costing less, but I want to stay as close to the original definition as possible with an "all cast" engine. And, a lot of Europeans chuckle at the big, all-cast iron engines, and I find it fun to build one that will still provide a lot of horsepower.

I'm not looking for the last horse, 450, 470, 430 hp, whatever, but I want a reliable engine.

I made a small sketch to illustrate the difference in roller displacement on the valve head between pushrods of the "correct" length and "short" pushrods.

10/5/201:47 PM

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