Hey guys, I'm trying to figure out if the set of heads I have are worth having done. Not looking for anything spectacular, maybe a mild budget build.
The casting number is 3993820, which shows to be from 71-74 chevelle/camaro? The little bit of info I have found his far, shows that they're just about the same as the 781 and 049 heads.
Any truth to that?
Would these be worth having them done?
Any insight is appreciated

I looked this number up in our ProSIS software and chamber sizes can vary all the way up to 122cc.  You'll need a big dome to make compression with those... not my favorite way to do it.  Closed chambers with flat tops make around 9.5:1.  IMHO if you can pick up some closed chambers for a couple hundred bucks you'll be ahead.

Not looking for anything spectacular at all Joe. The way it sits as of now, is how I picked it up. Block, crank and cam(was told Melling RV). #1 piston was melted, from what I was told, too much timing, too low octane fuel and possibly too much compression? Still has 6 pistons in it(pop ups), not sure yet of brand or possible part number stamped in them. I'll have to find a set of pistons and rods. I'm going to put it on the stand this weekend and have some more specifics.

As for what I'm looking for/expecting, not much at all. Just figured I'd piece it back together little by little and have a back up runner, or if I came across another hull at a decent price then I'd have something to drop in and toy with.
Needless to say, expectations are at the bottom of the barrel

More questions.

I'm assuming this will be a .030 or .060 over 454?

What RPM do you want it to turn?  Weight and size/type of hull will influence the impeller size which, with your horsepower, will define your RPM.

Cubic inch and RPM determine airflow demand.  To keep port velocity high, select the smallest port size that supports the required airflow demand.

What exhaust?  Logs vs headers will require different cam timing events (less duration and/or overlap).