Pistons and Connecting Rods

The pistons are made of light alloy and are coated with graphite. There are grooves for two compression rings and one scraper ring. The top compression ring is flat and molybdenum coated. The lower compression ring is wider than the upper compression ring and has an oil scraper function. The oil-scraper ring consists of 3 parts, upper oil control ring, expander, lower oil control ring. The 3.2L (LA3) piston pins are full floating and are retained by locking clips in the piston pin bore. Connecting rods are manufactured in one piece. The 2.6L (LY9) piston pins are press fit. The connecting rods are fractured at the connecting rod journal and then machined for the proper clearance. The connecting rod bearings are replaceable. Connecting rod bolts are non-reusable torque-to-yield bolts.