midlifecrisis Posted March 14, 2010 Report Posted March 14, 2010 These are the markings as they appear on the top of both pistons J98J8 1.00MM 513P4 CO ARROW HERE POINTING DOWN! Quote
H.R.E Posted March 14, 2010 Report Posted March 14, 2010 It'a a wiseco .040 piston 513p4 is the old numbering new part number is 513mo6500 Quote
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