FR500 heads v. ported 03/04 Heads

Tunnelvision

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Here is my data of a "Naz" Ported IC-Head (03-Up), not an Anderson Motorsports Stage 3, but gawd darn very freaking close, so close that I had to double check that we were not talking about the same head LOL! Any how they were flown on a SuperFlow 600, stock bore, @ 28 inches.


Naz

The flow numbers on your "Naz" Ported IC-Head (03-Up) are amazingly close to my AFM C heads.


To the OP, Whatever heads you get....remember porting is a gift that keeps on giving.
 
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cobraracer46

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In the 2008 FRPP catalog, the FR500 heads are no longer avalable in its place Ford came out with the CNC ported 03 Cobra head for 2008. In my opinion, it makes more sense just to modify the 99-01 heads by extrude honing or CNC porting than it would be to start all over with a new head.
 

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