numbers starter area on 66 bb

[Carl B.]

I removed starter motor 66 BB for wire harness repair and noticed numbers on block that starter covered up #s are 2769 with a side ways C ??

[Joe R.]

Re: numbers starter area on 66 bb

Carl,

How 'bout a picture? Is your engine original to the car or at least the right vintage?

Joe

[Carl B.]

Re: numbers starter area on 66 bb

tried to take picture car on jack stands no room for good picture block 9942 had pad checked was not possible

[Larry M.]

Re: numbers starter area on 66 bb

Carl:

These numbers are most likely the engine block casting date. It is in the format of MONTH, DAY OF MONTH, AND YEAR. The month is a letter with A=January, the day of the month can be one or two digits, and the year is a single digit. Example: J76 is October 7, 1966, and B126 is February 12, 1966 These letters and numbers are generally "upside down" when viewed from below the car.....so approach it in this manner. Sometimes a mirror can help.

Look carefully and closely, as some of the letters and digits can appear different than they actually are (due to various casting flaws/issues, etc). What is the date that is on the engine pad which shows when the engine was assembled?? This may help to narrow down the engine casting date range.

Larry

[Carl B.]

Re: numbers starter area on 66 bb

numbers stamped rear of casting clock casting number B 19 6 pad original ?? T 03 03 IP maybe a rebuilder non factory or dealer

[Joe R.]

Re: numbers starter area on 66 bb

Carl,

That's a February 19, 1966 block casting date and a March 3 engine assy date. Makes sense so far. When is your car's birthday?

Joe

[Carl B.]

Re: numbers starter area on 66 bb

03 09 66 but I think we are talking about different numbers would have never seen if starter was not removed

[Wayne M.]

Re: numbers starter area on 66 bb

03 09 66 but I think we are talking about different numbers would have never seen if starter was not removed

By chance are we talking about STAMPED numbers, and not cast; located on the flat machined (unpainted) bottom surface level with the oil pan flange ? (like pic below, only different #s)

[Carl B.]

Re: numbers starter area on 66 bb

sure looks like it

[Carl B.]

Re: numbers starter area on 66 bb

what do those numbers mean if anything ?

[Wayne M.]

Re: numbers starter area on 66 bb

what do those numbers mean if anything ?

Carl -- if I remember past posts, they had something to do with the piston sizing, as there's a number stamped opposite each piston opening, on the oilpan rail. Definitely a factory stamp. the other backwards "C" and the "+" might be rebuilders markings.

Re attached pic: So are you saying your numbers are stamped somewhere in this area, hidden by the starter when bolted in place ? the previous pic with the "10" is in the shadow, at the right margin on this shot.

[Carl B.]

Re: numbers starter area on 66 bb

That's correct #'s stamped top to bottom near edge of block