I am considering buying it for my 61 vette
The number on the right front of the block is F0118
the engine casting number is 3789935
the numbers on the right side back area are A1720

any help or input will be appreciatedhttp://images.ibsrv.net/ibsrv/res/src:forums.corvetteforum.com/get/images/smilies/patriot.gif
Thanks Scott

3789935 = 61-66 283 ,230-315hp , car & Truck 2-bolt
Take another look at the F0118 ,should be a letter or 2 behind it.
Also the A1720 as that's the date code and there's too many #'s.
Should look something like
http://www.yearone.com/updatedsinglepages/Id_info/gm_engine_id/gmidimages/decode4.jpg

I'll guess the 0 isn't part of it and it's a 62 block but recheck it.