Can u help me with these eng #'s

[AC_B-1Novice 0]

These are the numbers I found on my 7012 engine. What does this tell you about it? 243431 0196 02 7101181 or01 or 1, I cant make out for sure if it is an 8,a 0 or just a scratch. Ser# C81730 or 90 or the 0 could be a 6 Sorry that it is so unclear but that is all that is there. larry

[BLT 475]

24 (24)CID CI 10 HP (3431)Build description engine. 0196-02 is the bill of material list and it was built 1971 (71) Jan (01) date (18) assy line (1)

[RayS 65]

243431 is a 10hp Briggs.

The chart explains what all the numbers mean.

[AC_B-1Novice 0]

Thanks Guys,,,you're the greatest. larry