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Discussion Starter · #1 ·
I am about to completely rebuild my motor, this is the setup I have... I have been told it will work, then some say I am nutz... Please help!! I want to send all the parts in this weekend to have them cleaned, surfaced and ported. The combo I have is.....

N42 Intake Plenum (The one without metal between the runners)
N47 Head with larger valves and ISKY cam
F54 Flat-top block
Centerforce Clutch
Stock Injectors + High Pressure Fuel Regulator (@50lbs)
Larger Fuel Pump

All of this will be assembled after the entire lower-end is completely balanced internally.

Pistons

Rods

Crank

Pulleys

Harmonic Balancer

Flywheel
The head will be surfaced and a 3way valve job done.
Now this is where the confusion is, I am currently running a F54 block with a N42 head. I kept blowing gaskets out of it. I then read up and found out this setup produces 10.8-1 compression. I was running 89 gas. So If I rebuild this motor with the N47 (same as N42 but with steel seats rather than brass) and get new Turbo pistons and rings. Will it work or will I be driving a timebomb? Anything I missed I can fill in, I will be on the board for the next 8 hours looking for help so PLEASE!!! respond.

Bean Bandit
 

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107,597 Posts
Discussion Starter · #3 ·
Small Update...

I will not be using Turbo pistons due to the fact it will drop compression to 7.6-1 I DON'T want that...I plan ro run HiOct pump gas...What to do...
 
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