18R and 18RG have the same bore size BUT different piston ring thicknesses, so you will need to buy the 18RG rings. Also when I bought my 18RG rings (genuine Toyota) the top ring was cro-moly and the second ring was cast.
As M.J.H. said, if you know your bore size and ring thickness you could get the ringhs to suit. Save buying genuine $$$. Make sure if you get 'file fit' rings that they are fitted properly (i.e. actually filed to size).
Mon, 22 September 2003 02:27
