Small block heads

Looking for a set of small block heads for a 273. Not looking for anything fancy, just something cheap that’ll work, preferably in the Chicago area. I appreciate the help.
What year? What intake are you going to use? 64 and 65 had a different intake bolt size and angle. Casting numbers for 64-5 end in #315 and #080.
66-7 are #178,234, and 920.
68 and 69 are open chambered and not recommended.
The #302's came from mid to late 80's 318 Lean Burn engines and would work well.