I ordered a set of 8:3:1 forged turbo/nos Pistons...(420a)Neon Pistons, and I am have'n a heck of a time tring to figure out where the front of the piston is..!!? They are not marked or nothing. the notches look the same on both sides, I called Race Engineering and the guy said one side has to have deeper notches for the intake valve. He said to mic 'em but I don't have a mic handy... when I lay a coin in 'em I really can't see any differents to the naked eye.. HHhhhmmm..??!
Hahn,Wiseco,Eagle,MSD,TurboXs K&N,mopar,AEM,Greddy,Vortex,apexi and a bunch of other stuff..
#16593, "RE: Wiseco Pistons" In response to Reply # 0
Yeah you can use a coin, but what I would do since I didn't notice the rods being attached, is to box'em up and let the machine shop worry about it. Ask them if they make a mark w/ a sharpie or something on the piston to indicate which way is forward.
#16595, "RE: Wiseco Pistons" In response to Reply # 2
This may sound odd to you, if you have ever built engines before...
They are likely non-directional, with zero wrist pin offset. When i built mine, my uncle was disturbed that he couldn't find a directional marking. He busted out the micrometer, and sure enough - no offet. So i called HRC .. sure enough, non-directional. You can put them in any way you see fit.
Call whoever you bought them from (or failing that, call Wiesco) and make sure they are non-directional like my JE's were.
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#16596, "RE: Wiseco Pistons" In response to Reply # 3
>This may sound odd to you, if you have ever built engines >before... > >They are likely non-directional, with zero wrist pin offset. > When i built mine, my uncle was disturbed that he couldn't >find a directional marking. He busted out the micrometer, >and sure enough - no offet. So i called HRC .. sure >enough, non-directional. You can put them in any way you >see fit. > >Call whoever you bought them from (or failing that, call >Wiesco) and make sure they are non-directional like my JE's >were. You are RIGHT! my friend...! thax!
Hahn,Wiseco,Eagle,MSD,TurboXs K&N,mopar,AEM,Greddy,Vortex,apexi and a bunch of other stuff..
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