How Much Can Heads Improve Compression???
Option B Those are some nice looking heads! I would have chosen 302 castings if it was a option. The 920 chambers are very close the the 302 chambers and the ported runners are as good or better than the 302's. You should raise compression a half point without pistons or a lot of decking. Or you could leave the compression low and do a Rusty Mod or 70 Duster mod! LOL
Yes, 302's would be another good option, but I don't have any of those, especially finished.
This is my son's car, and we're trying to get it running and driving. It would be nice to boost it, but that would cost $$$$,and we have other projects going and have to keep the costs under control. (Not to mention that Dyer's Blowers is only 20 minutes from here....)
We have two garages full of Mopars that don't run right now, and we need to get some running.
This engine was freshly rebuilt back in the mid 80's and hasn't had any miles since. I don't want to reinvent the wheel here and start from scratch, just try to get it optimized with the parts that I have on hand.
I'm just trying to see if we can get the compression up to a more reasonable number. This just started out as pulling the 360 heads to get hardened seats installed. Then we decided to check the compression, and it was going to be low with those heads, so we are trying to see if we have something in our pile-o-parts that we can use (and I have a big pile of parts)...
I have more engines laying around that need to be built for future projects, so I don't want to invest in the cost of supercharging or turbo. The more you modify, the more problems that arise, the easier it breaks.... KISS (Keep It Simple Stupid) is the motto I like to stick with....
