Forged or Cast Pistons - What's the verdict?

[rocco16 at sbcglobal.net (Larry Fry)]

Looks like you've talked yourself right into the forged units.
Not a bad choice, actually.

Larry
sandiego16v



> Had my 2L 16V block inspected by the machine shop. The cylinder walls
> are good and only have .001 taper but my pistons are worn beyond what
> spec allows.  They are worn .004" and the spec only allows around
> .0028"
> 
> So now comes the choice Forged or Cast (stock).  Both are in the same
> price range so that is not an issue.  And I will most likely be going
> with 83mm over sized pistons.  Mainly because the machine shop wants
> to straighten out the cylinders instead of just putting new stock
> sized pistons.
> 
> Public talk seems to favor WiseCo or JE pistons.  Both are forged
> type.  WiseCo seems to be regarded as a better piston and actually
> costs less.  I talked to the manufacturer of WiseCo and they reassured
> me that the type of problems/noise were eleiminated by newer
> technology capabilities.  My machinst favored forged pistons as well
> and said that the tolerances for a street machine would be tigher that
> a race engine which allowed the extra slop for expansion that caused
> the noisey slap heard on cold engines.
> 
> So has anyone actually used forged pistons and what has been your
> experience?  Any other good suggestions?