Calgary, looks like you're right. Been a long time since I got into GMs of any sort, and longer since the old Ponchos.

http://www.pontiacpower.com/Bigblock.htm

http://www.popularhotrodding.com/eng...9PHREMPontiac/

The 265 and 301 were a lower-deck version of the same block, so can't really be considered "small blocks" either.