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jwasbury jwasbury is offline
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Join Date: Jan 2008
Location: Weehawken, NJ
Posts: 3,627

My JE piston set has the same grooves. They are not optical illusions. AFAIK, those are anti detonation grooves. As you may also notice, the skirts are coated. LN engineering's website may have some additional info describing the features of the JE pistons they spec in their P&C sets. I believe LN normally sells the pistons with OEM Goetze rings, but there are other options.
Current: 1983 911 GT4 Race Car / 1999 Spec Miata / 2000 MB SL500 / 1998 MB E300TD / 1998 BMW R1100RT / 2016 KTM Duke 690
Past: 2009 997 Turbo Cab / 1979 930
Old 10-07-2010, 06:55 PM
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