NORS Piston Sets. PN 1130 Ford Mercury 390 1966 1967 1968 1969 1970 .020, .030, .040 available 9.5 cr. Floating pin. PN 1116 Ford mercury 390 1961 1962 1963 1964 1965 .020, .030, .040, .060 9.7cr, Floating pin. $80 a set plus the ride. PM if interested.