Brand: Sealed Power Manufacturer’s Part Number: 425NP 30 Piston Rings Included: No Bore (in.): 4.030 in. Bore (mm): 102.362mm Stroke: 3.500 in. Engine Stroke Type: Stock Rod Length: 5.780 in. Piston Style: Dish, with no valve reliefs Piston Material: Cast aluminum Compression Height (in.): 1.630 in. Wrist Pin Style: Press-fit Wrist Pin Retainers Included: No Wrist Pin Included: Yes Pin Diameter (in.): 0.912 in. Piston Ring Thickness: 5/64 in. x 5/64 in. x 3/16 in. File Fit: No Gapless: No Remanufactured: No Quantity: Sold as a set of 8. Notes: Recessed piston head is 0.080 inch deep x 2.770 inch diameter.

Sealed Power Cast Pistons

For budget or stock-style rebuilds, it’s hard to beat the value of Sealed Power cast pistons. They’re 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, these pistons provide improved reliability, performance, and a long service life. Hundreds of models are availablefind the size and style designed for your engine application.