The CP Pistons Bullet Race (BRS) piston set for Olds 374 comes as a matched eight-piston package with clear dimensional specs. It lists a 4.125" bore, 3.500" stroke and 6.000" rod length, sold as an MTO non-cancel set of eight. Choose this set when restoring or building an Oldsmobile 374 engine that requires those exact measurements.
CP Piston BRS Olds 374 4.125 Bore 3.500 Stroke 6.000 Rod Set Of 8 (MTO Non-Cancel)