Larry, my practice has always been to replace all rings, re-hone the
cylinders, and balance the new piston to the old ones. You can do less,
but if the engine is a high performance engine the more you do the
better.
Aren't you using a supercharger? What is your compression ratio? Those
pistons look like they will be in the 10:1 ratio with a 'normal' head.
Isn't that to high of a compression ratio for a supercharger?
Also that piston looks like something beat on it. Those nicks (which
appear to be old) may cause detonation.
Larry Hoy
> -----Original Message-----
> From: owner-mgs@autox.team.net
> When I buy forged pistons from someplace like Venolia, is the
> machining process so consistent that I can just replace one
> of the pistons and leave the other four with their happy
> rings in place? Or would I need to pull them all and balance
> them? Or just one and balance the new one with that one?
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