Reply to "TRW L2416F Piston Compression Height?"

That dimension is in a locked up hard drive. Sometimes I wake up in the middle of the night and remember the numbers. I'll PM it to you if I do.

The most you can cut the iron heads is .030". Usually they get cut .020". Then you won't have to worry about cutting the manifold to fit.

There is a chart somewhere that indicates how many cc;s are reduced per .001". Your shop may have it.

I don't think you can get the iron heads under 60cc's.

If you go with the iron heads you can use a steel shim head gasket that is .020" thick instead of .037".

That saves you a lot of effort.

I personally think all of the 4v iron heads should be "cleaned up" under the valves. What this involves is pocket porting the area immediately under the valves to remove the restriction ring cast into these heads for production purposes. All the iron heads have them.