383 which balancer ???? need help
OK a friend asked me a question i couldnt answer so here goes he bought a NEW 383 sbc rotationg assembly no bal or flexplate it has been internal bal becouse he paid 190.00 to have it done but the machine shop didnt tell him which balancer or flexplate to use 400 style or 350 style 400 being ext. 350 being internal i say 350 but im not real sure becouse of the 400 style crank any help so i can get him the answer so he can get the rest of his parts .. thanks i just didnt want to give him the wrong answer becouse i wasnt sure mike