hey all i have a 383 big block which this site says is a RB but my block says RScan someone please help me find out why i cant find any info ANYWHERE on thisthe block details are:2120129-4R.S5.6.60
can you verify the numbers on the block2120229 361 - B Industrial2120329 361 1958-66 B2120429 361 - B2120529 413 1959-65 RB2120329 383 1959-60 RB Golden Lionthe above numbers are cast into the block in POSITIVE. where the numbers stick up from the surface.the B and RB designate which big block it is.. not which build for which car... is there a stamping number in the front of the block above the water pump mountingthis stamping numbers might say 383 XX or something similar..you could also have an export motor with the odd casting number that is specific to foreign built cars and engines.. these are mostly US and canada specs...
i dont see any number above the water pump.after a week straight of searching and endless phone calls i have still had to luck if someone could shed some light it would be much appreciated
HI there... I also have one of these RS coded motors with a date code i believe is 5.12.602120329-2on the flat surface is Stamped 5 - 18 and then there is RP 38Im told this engine was in a 1960 Chrysler Windsor Conv....HELP!!!????