Cylinder Head Choice

Spacegrass, Suggestion #2. Buy and read. One source has already been mentioned in previous posts. 2 others from SA Design, "How to build big-inch Mopar small blocks" by Szilagyi. Larry Shepard has a couple different versions out, first was LA only. 2nd version "MOPAR small block engines, how to build max performance" includes the previous LA info as well as some Magnum info. Some of the old Direct Connection books had suggestions for packages to run a specific time. I have an old white cover probably about an inch and a half thick, can't put my fingers on it right now for the title but it would be out of print but maybe someone else can chime in with the title in case you want to watch evil bay for one. A factory service manual for your vehicle will help you know what is there to begin with, much more specific information than a general Chilton's or Motors. It can come in handy with wiring diagrams, hose and cable routings, etc. You may be able to check Chilton's or Motors out from your local library so you can see what they cover. Ask questions, get answers. Form your own opinions. Go on from there. I may get flack for this but there's no replacement for displacement IF you want to optimize drivability on the street and still get a certain timeslip. If you stay with a 318 you could cheat and add a 4" stroke for 392 cu.in. and it will still have a 318 casting #. Your secret if you choose. If you are dead set on only 318, my suggestion would be to look for a roller cam LA block for your "hot" engine build. It may save you from having flat cam lobes when you first get it running if the start up doesn't go smoothly and you try to break in the cam with heavy valve springs. You can start with softer springs for the cam break in and change the springs on the motor with air in the cylinder, but not an issue with a roller, whether hydraulic or solid lifter. Then you can build your high compression motor while still enjoying driving your car. Kind of along the lines of 318willrun adding a four barrel to his 318 to get things ready for when he swapped in the 360. Hope this helps ..............