Mahle MS piston set for Chevrolet LS engines specifies 404 CID with 4.010-inch bore, 4.000-inch stroke, 1.110-inch compression height and 6.125-inch rod length, delivering an 11.5:1 compression ratio. The set lists a -5.8cc dish and 406 g piston weight with a 0.927-inch pin. It’s a matched eight‑cylinder piston set specified to these exact dimensions for LS rebuilds.
Mahle MS Piston Set Chevrolet LS 404 CID 4.010in Bore 4.000 Stroke 1.110 CH 6.125 Rod 11.5 CR