I Looked at the date code today & it was unlike any I've seen before. it did,t have numbers in a row on a cast tag looking thing like you normally see. It has a raised circle with 4 numbers on it in the 2,4,8 & 10 o'clock positions. I wrote the #'s down but forgot them at my garage. Also in that same little area between the oil filter & pan is a large letter C with the letter F or L inside it but all connected.

Does any of this make sence? I'm confused. Thanks for your help.
Yes, It's definately a soild lifter engine.

Billy