my68barracuda
Well-Known Member
I guess he doesn't really understand his product totally. I have provided a photo of a KB on the left and a Mahle forging on the right. The KB has a top ring land of .280" and the Mahle .240". The Mahle does not require any additional top ring gap unlike the KB. If its placement and not alloy type as you and KB suggest then please explain. I'm curious now. J.Rob
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the KB 239's that I will be running have the top ring down .217 from the piston crown. The second ring is a whopping .831 down from the piston crown. So this top ring is closer to the piston crown than either of the two pistons that you mentioned.
One thing to consider on the two pistons that you show in your photo.
The KB Hyper piston is a cast aluminum piston, it will have good strength but will not have the density and strength of a forged aluminum piston. Those are two vastly different pistons from a material and a processing standpoint.
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