A few days ago I came across a market place ad selling some leftover auto parts supply house stuff. I bought it all really cheap. There were 25 complete piston sets mix of V4, V6 and V8, some oil pans, nice balancer pullers, ingersoll Rand ratchets, valve seals, push rods, ARP sets. In the mix was an old (I think) set of TRW forged pistons that I spent two hours on google and cant identify. Its only a small box of four, Part number L 3090F. 30 over. I have attached some pictures if anyone...
Old TRW Piston Challenge
