Thanx to all for the input, called Chuck Hansen last night (aces prez) and got the straight poop, the ZL3 code was not an rpo option code, it was a Fisher Body final assy, code, told them wat holes to drill and such for the SS conversion, but the wierd part is , is that all assy. plants were not consistant in using it, we compared a lot of build sheets and found that Atlanta didnt use them hardly at all and Balt. used them consistantly, but that really shouldnt suprise any of us :0) and yes the ZL3 code was used in conjunction with the Z15 and the Z25 RPO codes, no wonder we are all hooked on these cars , there seems to b always some type of ghost lurking around the corner to make u dig even deeper for answers and the right way to do it, even if its not yours, Thanx again guys for all the input, L89SEDAN
[This message has been edited by L89SEDAN (edited 04-27-99).]