https://portland.craigslist.org/wsc/pts/d/hp/6344704908.html

There's a orphan '68 385HP IJ 427 block for sale on the Portland, OR craigslist.
321 casting, J 19 7 date, T1031IJ, 18L122101

I was hoping it might be the missing block for my car but no cigar. Maybe somebody is looking for this one. Nice price too!

Question...would a z24 block in a TH400 car have been a IS suffix code and IJ be the non z24 427 cars with TH400?

Steve