The ea82 that is on the block has a square around, if that is what you mean? The engine has a low cylinder, still within 75 percent and rebuild is in sight got to make it through the hunting season first. I can take a picture what area would be best for you to see, like maybe a close up or something. The engine was carbed as far as I know. Would like to get some more horse power and a higher rpm at the top end. Dont want to loose to much low end if I can help it. Dont know if pump gas can stand any more compression, when I take this engine apart and get it bored to a clean over, I will need to know were I can get over size pistons and new bearings and gaskets and such and while its down I can shave the heads alittle and do some port and polishing maybe get a better cam I dont know. Any help would be appreciated I also have access to a turbo. I can't do this without help though. I know that these engines have been worked, probely by you or some others on this sight. THANKS.