So...I bought a stock 68 318...

Did some checking on this engine this morning. Pistons are .075 below deck. Bores are. 3.938-3.939 ,which confuses me because all 8 pistons are clearly stamped. 040...wth?

Also, where is the p/n on an MP Purpleshaft cam?

Still debating on what to do about heads, budget for heads is $500 max. Any suggestions? Mill the 4027163's or work to my 915's. I just want a nice street driver on the cheap,not going racing in this truck, but may be pulling the Duster from time to time.