The Mahle MS piston set is a complete set of eight pistons specified for 394 cid Hemi applications, sized to a 3.937" bore with a 4.050" stroke and 6.125" rod, 0.927" pin and a -2cc crown volume producing a 9.3:1 compression ratio per the listing. These pistons reference 4032 in the extended data and are supplied as a matched eight-piece set for engine rebuilds.
Mahle MS Piston Set Hemi 394ci 3.937in Bore 4.05in Stroke 6.125in Rod .927 Pin -2cc 9.3 CR Set of 8