Just wondering; not a lot of info online like SBC codes.

230, block casting 3921966, suffix F1024PG

250, block casting 3994257, suffix F1122TPW

I understand that the F suffix is Flint, MI and the next four digits are the month/day, just curious about the suffix codes.

Last edited by 66Submarine; 02/11/2013 9:44 PM.
Some of my crap:
1963 C-30 flatbed dually 292/SM420
1965 C-10 LWB fleet 250/column shift 3 speed
1965 C-30 9' stepside 250/SM420/4.10 gears (my DD)

Website I made for my crap:
http://www.66submarine.com