Milling 360 heads for a 318

68cuder said
What cc would I be looking at if they were milled like say .040? And it's going to be just a fun driver. Not looking to really race it.

.040 should give you about 65cc chambers. I always mill the intake side .038 also. That's the spec. Use a 340/360 intake if you step up to the bigger ports, even a stock cast iron 340/360 intake.