Custom Forged CP Pistons for Aircooled and Watercooled Porsche Engines
The newest CP X-Series lightweight forged 2618 pistons sets for aircooled Porsche 911 engines are the perfect balance of strength and weight savings. CP Pistons are optimized for use with LN Engineering Nickies cylinders and deliver quiet operation with exceptional longevity for any performance Porsche engine rebuild.
CP Pistons line of X-Series forged pistons for aircooled Porsche 911 engines including 3.0 Liter SC, 3.2 Liter Carrera, 3.6 Liter and 3.8 Liter RSR models feature full 3D under crown milling, normally only found on custom pistons, insuring the lightest possible piston. Manufactured by CP-Carrillo from high-strength 2618 aluminum alloy forgings, CP Pistons X-Series pistons for Porsche engines utilize a narrow pin boss forging and come with heavy duty pins for extra strength. Each piston in CP's shelf Porsche program features anti-detonation grooves, accumulator grooves, double pin oil with broach, CP's own wire lox system including an installation tool, and a set of modern CPN rings, consisting of gas nitride top ring, napier cut second, and 3-pc oil control designed for use on Nikasil bores. X style forgings covers 4 bore sizes including 95mm, 98mm, 100mm, and 102mm.
The Porsche 911 3.0 and 3.2 pistons are set up for 49x41.5 valve sizes and Porsche 964 and 993 3.6 pistons are set up for 51.5x43.5 (RSR) valves. Advertised compression ratios on 3.0, 3.2, and 3.6 CP Pistons assume 90cc combustion chamber volumes and a 1mm (.040") deck.
Where X forgings are not available, CP Pistons can be custom made for both aircooled and watercooled Porsche applications on full round slipper skirt forgings that provide superior performance to original equipment pistons and can be ordered with undercrown milling and other options typically found on X series pistons for reduced weight and increased durability. Coated skirts and other coatings like thermal barrier, hard anodize, and DLC are also available on CP Pistons for all Porsche engines.
Most forged CP Piston sets for Porsche engines are in stock and can ship in 3-5 business days; custom CP Pistons average 6-8 weeks. Please call for current availability and lead times; custom CP Piston orders require a completed custom piston worksheet to ensure the supplied CP Piston is correct for your Porsche engine.