Mahle MS 76-83 Porsche 911 3.0L to 3.2L Motronic 98mm Bore 70.4mm Stroke 127.8mm Rod 22mm Pin 38.5cc 10.0CR - PS98-015

MAHLE Motorsport piston and cylinder kit for the 1976-1983 Porsche 911 3.0L running Motronic injection, taking it to 3.2L with a 98 mm bore on the 70.4 mm stroke. The kit pairs a set of six forged 2618-alloy pistons (PP98-015) with matching PC98-001 cylinders and includes a 1.2 / 1.2 / 3.0 mm performance ring set. With a 38.5 cc crown it runs a 10.0:1 compression ratio.

MAHLE's relationship with Porsche dates back to Porsche's beginning, and MAHLE Motorsport North America drew on that OE and racing experience to develop its air-cooled performance kits. The pistons are machined from forgings with narrower, shorter skirts to reduce weight and friction, and the cylinders are produced and machined to original-equipment tolerances for performance, durability and longevity. These kits are modern adaptations of the original parts, so visual differences from factory components are intentional.