Quote: ok for cheap then, just get the solid .528 cam for the 383 & e85 quickfuel carb have the heads milled to get you to 12:1 or so (iron heads, alum could go to 13:1) run a 180 deg thermostat
Do you have any idea hom much would have to come off a set of heads to get his low compression 383 , he's lucky if it's 8:1 on its RATED 9.2 compression.
I just ran some numbers , the pistons in his engine are probably .080 in the hole , if this is the case he would have to have a head with a 46cc chamber to get 12.0 in a 383.
If his heads are 84cc he would have to cut .190 off them to get the chamber down to 46 cc.
It's a nice thought but not something doable with his low budget build with parts he has laying around .
there were different 383's some 10:1 some 9.5:1 some 8.5:1 etc.
And Chrysler OVERSTATED compression especially on 383's.
If you read the initial post he has a 67 383 and he says it's rated at 9.2, actual is closer to 8.2. I have a couple of 69 383 335HP road runner/superbee engines , it's rated at 10.0 , actual is more like 9.3 .
it's hard to build 12.0 in a 4.25 bore and a 3.375 stroke.
I have a 383 that is about 12.4 compression ... to get it , I had to increase the stroke to 3.9 , cut the heads down to 84 cc from 90 and put a 10 cc dome on the piston.
