For budget or stock-style rebuilds, it's hard to beat the value of Sealed Power cast pistons. They are made from high-quality aluminum alloys and feature a carefully controlled casting, heat-treating, and CNC-machining process. And, because they're designed and manufactured to exceed OEM specs, they'll provide improved reliability, performance, and a long service life. Ford, Ford truck, OMC 289 / 302 V8 1964-1968 4.0 bore Rings 5/64, 3/16, Pin Dia .9122