![Cast Piston Set for 4.000 in. Bore V8 Engines [Hypereutectic, DUROSHIELD Coated]](https://www.jegs.com/images/mini_750/800/844/844-h618cp.jpg)
Cast Piston Set for 4.000 in. Bore V8 Engines [Hypereutectic, DUROSHIELD Coated]
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This cast piston set fits 4.000 in. bore V8 engines during a performance build, using an FM-425 hypereutectic alloy with DUROSHIELD skirt coating that improves oil control and scuff resistance.
Speed Pro H618CP Specifications:
- 4.000 in. Bore, Standard Size
- Hypereutectic Aluminum Construction
- 1.560 in. Compression Height
- 0.927 in. Pin Diameter
Add Strength and Power to Your Pistons
Sealed Power Hypereutectic Pistons are built to exacting tolerances and feature an aluminum casting with an anti-friction skirt coating that is highly resistant to scuffing and wear. The Duroshield skirt helps improve fuel economy, doesn't require any additional clearance, extends piston life, and increases horsepower with less friction. These durable pistons operate with tight bore clearances and work perfectly with normal-range ring end gaps, making them great for street, bracket racing, and oval track applications.
![Break-In/Engine Oil Supplement [12 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28060.jpg)
