Value of a 340
You can buy the whole stroker kit for $2000. plus a gasket kit, e.t.c. cam $300. heads for $1500 that leaves machine work. Ive done two of these and both run good so I know it can be done. Of course like anything else you can spend a whole lot more if you want but you can build a good street motor for around $4000. When i did my first one the kit was $1300 the second one the kit was $1500 now its $1900.Of course i had the block. good luck on whatever you do.
Of course I am a 340 fan so i vote go 340.