could any one help im rebuilding my 2wd cossie with a 205 block,0.5 pistons,reground crank ,all new bearings,gra rings ,but i have a problem i brought a set of second hand pistons from ebay, the numbers on 3 of them are yb0883 and the other 1 is yb1130/01. The pistons all look identicle but the one with the odd number has 4 little cut outs by thr rings.
Does any one know if there is a problem with this one or if it is just the way they came,the pistons were supplyed by ggr and the part number on the tube is ggr253
cheers for any help