They all came through with, Manley Forged Pistons from the factory. All the internals, were forged from the factory. That's why you see 03 - 04 Cobras, holding up to 700 - 800HP without having to change anything internaly, Mike. SCT Tuner.:bigthumbsup:bigthumbsup
I think I saw it somewhere they are ASW or AWS Pistons. If you read everything else they will say "Manely rods, and the pistons are the same from the Ford Lightning". but somewhere i saw the name. I know people say to get Manely or better piston when you rebuild it.
its mostly impossible to tell if somethings been cast or forged since the main difference lies within the molecule arrangement. sometimes the forged.sometimes the forged beams will leave the stamping marks near the inner contours of the ring to the beam.sometimes
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