Awesome car! Another thing I'd question is why the "S" stamp is a different size than all the other letter/number stamps. Blue engine paint on the block is wierd, too. Devon
i think I54 is Jun 3 (GM used I's for 1's since many 1's broke or chipped) 11A is november 1st week (5 month diff, whick is within the 6 month limit) RS is struck without gangblock. gangblocks were use for vin/ser # Julian Calendar: http://ag.arizona.edu/azmet/julian.html
Its my understanding that these sets of #'s are not Julian date codes but some GM Buick corporate check codes or something . My # match GSX has a 373 and another GS a 420 .Some older posts by Buick and GM #'s guru Daune state "these #'s are not openly spoken about over the internet " in an effort to prevent fraud etc .
Yes, you are correct. i was taking a guess and was wrong. Duane also corrected me and also said those codes(production code) are NOT openly spoken about. As soon as i get some free time,since im about 15 mins away from duane, i want to stop by his place, buy the book and have a lil chat about this GS and a few others (one`66GS, two`68 GS's, one`70-350GS, one`70-455stg1) **Im kind of new to buicks, more into BBC's (Camaros/Chevelles)
