runnning a 4 thread AND 9 thread head.

TermiN8er

Corn Fed Beast
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I have an opportunity to get a set of heads cheap that need a little journal work but one is an aviator head (4 thread) and the other is a 04 cobra head (9 thread) heads have been ported and flow tested to be even.

Question is.... with the journal fixed would you run these heads together on a block? stock cams and replaced spring,valves,etc.. this would save me almost $2500. just curious what you guys think.

HP level would be over 800HP on a boss shortblock.

thanks!
 

TermiN8er

Corn Fed Beast
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Passenger , and the heads are off the car already.

ma6y3e3a.jpg


Cobra left and aviator right

ury5y2aq.jpg

su8umavy.jpg


Port and journal
 
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TermiN8er

Corn Fed Beast
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Seaside, CA
The head on the right looks like a 99-01 head

You are correct it was a DEC 99 Navigator head.

I decided to pass on this.... However if you are interested, let me know I can contact the owner and get you a good deal on these heads.
 

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