Reengineered piston kits from the ground up for small-block Chevy’s are stronger…
Probe’s P2256F FPS forged piston for the Chevy 3.480-inch stroke and 5.700-inch rod Length have been reengineered from the ground up in order to offer our customers a higher quality lower priced forged piston. Probe has done away with outdated TRW and Speed Pro style design and redesigned the wrist pin position making it symmetrical. Probe also incorporated a two-valve relief instead of four, thicker ring packs for street use all while making it lighter and stronger. The 350 FPS P2256F pistons and stroker kit are offered in a flat top design with a -4.0cc volume and available in multiple bore sizes. They are completely forged out of 4032 aluminum and feature full floating pins and are 100% produced and manufactured in the USA. These are great for the Street Racer and Hot Rod hobbyist and can handle plenty of Nitrous.
• Increased valve clearance (up to .650-inch out of the box)
• Tight piston to wall clearance