i finally gunked and pressure washed the motor in my 66 c-30. the engine I.D. tag was very confusing; it looks as though it may have been stamped over. only 2 digits are overlapped. the beginning is CE7P278 then there are the numbers that look like they were over laped, or re stamped; it may be 10, or 67 followed by 03C C. can any one either point me twards a decoding site, or if any one knows what it is i would really appreciate it.

66' Chevy C-30 Rat