Thread: One Way To Build A 12 Cylinder Ardun or not

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Pat-Thanks for all the suggestions and help, please keep them coming.

Ted- Yes the valve diameters are the same, I'm going to change that. I think they did that just to do everything they could to get it to breath.






We have got a lot done, I know the valve angle we are going to use, valve diameter and the geometry for the rocker arms.
We wanted to make sure that our drawings so far were accurate. So we took the drawing to our lazier cutter and had him cut us what looks like a very thick head gasket. Now we know we have everything in the right place, water passages, head studs and bore centers.
The next thing is the drawings for the valve train and intake and exhaust ports.
Just a side note on this, usually when you draw something like this you just draw a center line down the middle and draw one side then make a mirror image for the other side. Not the case with this engine!!
Ken