what year block is this?

[chuckw2]

There used to be a really good reference chart on here for engine numbers but I can't find it anymore. I found a 425 short block core in the back at work with a flexplate on it so brought it home to take apart for that. It's a 425 with casting number 1364705, serial number starts with 5C, and the other number is LT 389.

Anyone know what year and what it came out of?

[Dr. Frankenbuick]

LT was the code for the 1965 401 4 bbl in the Wildcat, Electra and Riv.

[wkillgs]

The chart is still here!
Goto the 'Reference' section in the menu heading near the top of the page.
Maybe this link will work:
http://www.teambuick.com/forums/view...mbers_nailhead

[chuckw2]

Thanks. This is actually the page I was thinking of but I still can't find whata 5C came out of. Doesn't matter though anyway the block is junk ( cracked across the starter mounting) and the flywheel has a section of stripped teeth and it's bent more than my other one.

http://www.teambuick.com/forums/view...t_engine_63-75