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Walt,
Thank you for the dialog. I remeasured today after reviewing my initial notes and I got slightly better measurements though not even. Yes the center spigot is lower and I am measuring the spigots.
Before I tear this down I was thinking I would build up to the heads with .25 gaskets and retake the measurements at the heads. I can not do that yet as the head work is not done yet. What I was getting at was what kind of problems could I expect if I continue on with this build as is. From a scale of let's say one being an oil leak to five being a pulled stud to ten being throwing a rod? I was thinking of uneven compression ratios, head gasket leaks etc. Cam binding did not occur to me. But if that happens, I can always take it apart then. An oil leak or two I can live with. Blowing up my new parts not so cool.
All my cylinders are in the 6 tolerance group. I suppose I could put 5 's on the ends but I think that would be over compensating and as Magnus points out it is not recommended to mix on one side.
I know the various gaskets are intended for deck height adjustments, and I would assume that you don't mix on a side, but I did not remember seeing anywhere that you could not vary per cylinder.
. Thank you for answering the question on gasket crush. That is what I expected.
Knowing what I can expect for results I can weigh my options and make a decision.
BTW, one of the shops mentioned did the inserts and never mentioned spigot variances after working the case on their mill. I asked for a thorough inspection at the time. I am not placing blame or pointing fingers, but if there was an immenent problem, I would guess they would have picked up on it, but then again we are talking a variance of about .0015"
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1973 914-6 Conversion
2.7, crank fired, twin plug.
2006 997.1 Carrera S Cabriolet
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