ARIAS 81.5MM 10.5:1 USED PISTONS. B18C HONDA/ACURA. INCLUDED ARE THE WRIST PINS AND A NEW HEAD COMETIC HEAD GASKET(P# 4232-045) for 81.5mm bore and a compressed thickness of .045. scaring on top of piston is from valve tap due to miss shift causing an over rev. Pistons still in great condition and gasket is brand new just missing original packaging. NEW RINGS NEEDED/RINGS NOT INCLUDED.