hello benzdoc. here it goes, all info from 1959 motors manual for a 57 235. bore 3.562, stroke 3.94, rod bearings 2.311- 2.312, main bearings no.1 2.6835-2.6845, no.2 2.7145-2.7155, no.3 2.7455-2.7465, no.4 2.7765-2.7775. main bearing clearance,.001-.003". standard compression ratio is 8/1. 140 h.p. at 4200 rpm. yikes![i don't know if i would wind mine up like that for too long]. max. torque is 210 ft. lbs. at 2400 rpm. that should be good for starters. if you need more maybe we can find it. good luck.
