This may sound thick but wanted to no how to tell if a piston is forged or not?? Me mate has had a garage clearout & came across some old pistons that he stripped out of a dead pulsar engine (was nocking)? After close inspection of the "standard pistons" found a wiseco stamp inside piston! but another friend of myn said it could be a standard piston as he said some skylines come with wiseco pistons so could be o/e pistons? So thought i would ask the experts! YOURSELVES!!!! Also will they sit straight into my block as herd they were themselves into a grove on the original block theyve come from so may not sit true on the block (obviously new rings needed), hope you can help as am one ov the newbys with a pooly r! :sick: