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Hello, I have several core ThermoQuad carburetors that are good candidates for rebuilding but I have never actually tried going through them by myself.
I have rebuilt Holleys, mostly the 600 and 750 CFM versions. Holleys are easy for me but that may be because I started out with them way back in...
That is Less then I hoped, but it is what it is.The stock hp was 10:0,and 2bbbl was 9:2. at least the car is a four speed.
I also have a redone set of the original 906 heads, as a spare set, but I thought that would lower the expected CR? I haven't Installed the heads yet, so I can go either...
The KB 162 pistons are listed as having an 8cc valve notch volume...
Stock 915 chambers are around 82CC
If it measures 9.98 deck height
Stock length rod, stock stroke 1.908 C/H
the numbers say 8.5-1
Actually a little higher, I used .041 for the head gasket.... with the .025 your still getting...
The NASCAR rule book of the time had different engine sizes for different car weights.
Standard Class: 119" WB, 430" limit, 4000 pound minimum
Intermediate Class: 115" WB, 430" limit, 4000 pound minimum OR 405" with 3500 pound minimum.
It applied to all makes; Donnie Allison was running a...
Thanks! I feel better. This a bone stock original 383 Barracuda down to the hubcaps. No racing, but maybe to Salt lake or Flagstaff this summer to see kids. No abuse allowed!
would you hazard a guess as to what my CR will be?The 915 heads I am using have the larger valve, if my memory serves me...
You will probably be fine... There are tens if not hundreds of thousands of engines running KB Hyperutectic pistons...
Run big ring gaps, don't run nitrous, be careful about running to much timing of running lean & you'll be fine....
Just cause I'll never build another engine with them...