while i was installing my longtubes, i noticed the numbers 327 cast in both sides of the block. was just wondering if anyone else has seen this.

 

Yup... Casting number for this style block... Would have to ask GM in its infinite wisdom why it chose it.

 

I have the same numbers and was thinking this the other day

 

Everyone that has ever looked at their LT1 block has seen it. It happens to be the last three digits of the original part number for the block.

 

Bringing this from the dead on a search.
Shoebox, is there any difference in a 93 vs a 97 LT1 shortblock? I am thinking of buying a 93 shortblock with a CC306 already installed and using my opti, waterpump, etc.

Thanks in advance,
Chris

 

Any 93-97 shortblock will work with any year. You will have to swap anything specific to your current set-up to make it work.

 

Much appreciated.
Only reason I was wondering was because an engine builder told my buddy that there was a difference in the two.

 

There are some slight differences, but that does not mean it won't work.