see:
you're right about available notes on this swap
but it can be done. it will fit. you will have a LOT of work to do to fit this in. new mounts and probably a pusher fan using TWO 40 amp relays!!!
but you are a long way away to think ablout that right now. read leo's book on engines. all are about the same, some were made in mexico and are still quite good.

http://www.autoguide.net/apf/chevy-car_engines/index.html

http://www.theautochannel.com/autoparts/rebuiltbestgmc/itemtnx_707oy.html

read what links i have placed here
i'm doing a 292 in my 51 - 3100
good luck and keep us informed as to your progress.......

http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=010698#000000

http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=010192#000003

http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=5;t=000905#000000

http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=011243#000000

http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=011073#000000

http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=010192#000000

Jim & Caroline
The highway is for gamblers, better use your good sense."
Gooday-that's my 1¢ answer due to the lousy economy ~ cause I ain't got - no . mo . doe
Every Shaver | Now Can Snore | Six More Minutes | Than Before ... | Half A Pound for Half a Dollar | Spread On Thin | Above the Collar || BURMA-SHAVE