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. (1970-1980) Chevrolet, Chevy truck 400 CI V8. Bore 4.125, Rings 5/64-3/16, Pin Diameter .9275. Recessed head no valve reliefs
