[Vwdiesel] Piston fit in block ---- ( when reboring ).
jhsg at sasktel.net
Tue Sep 28 02:36:38 EDT 2004
>And it is very difficult to get a gasser machineshop to fit pistons that
Yes it certainly is. Close tolerance honing seems a thing of the past at
your average machine shop. Now for good work it is almost a necessity to go
to a specialty shop that deals in engines exclusively, and even then...
>I am going to ask James Hansen what he fits racing engine pistons to
>guess would be 10 thou. (or more ?)
Depends on the pistons. Forged get fit tighter (.003), cast looser(.006). I
know some guys go even looser than that, but with short skirt pistons these
days, you pretty much need some semblance of fit. I could see ten thou being
good with cast long skirt pistons and a good single compression ring like a
That's for stock car motors, don't try this at home....
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