Which Heads For My 396
After doing a Leak-Down test on my 396, I have decided to pull my heads. So I would like opinions as to which heads I should go back on with. I have also decided that the cam I installed is too much cam, so I'm going to replace it as well.
This is my question; I found a guy that has all different kind of heads. I currently have 3904390 Closed Chamber heads. I can have them gone through, or this guy has 353049 (Open), 3964290 (Closed), 3933148 (Open) and 3917215 (Closed) heads that I can purchase. I've already given him the money, I just have to pick one. Which ones would be a good choice for my roller hydraulic cam that probably is going to be 11-430-8 Comp Cams .577 lift, 280 Duration, 110 lobe separation.
To add; My leak-down test was all in the yellow and a couple were in the red. And, a while back I did a compression test and here were the results:
#1 - 135-140
#3 - 190
#5 - 170
#7 - 160
#2 - 150
#4 - 158
#6 - 165
#8 - 155
1969 SS 396 X66 - RS Conversion - TKO600 - 3.73 Posi - Paint Code 71-LeMans Blue
Last edited by Brettallen59; Mar 25th, 18 at 03:20 AM.