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· Turbo Dakota Junkie
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1,244 Posts
according to duner, these are better than the cometics as when the heads lift and contract, the cometics will become squished, where the fel-pros will retian their thickness.
Uh, NO! I think the Cometics are better than the FelPros. I run Cometics. But... I think that if you're going to run the hard ARP studs then the Felpros are probably going to work out better for you. If the studs won't stretch and contract, then the head gaskets have to. My truck has launched on up to 22 psi on a number of occasions accidently. Stock pistons and head gaskets are still intact. I just knew better than to run it out with that much boost. Neither head gasket will fix a lean-out detonation problem. (nice pistons!) hehehe
 

· ROFLcopter
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8,647 Posts
Yes, I understand NOTHING can fix a lean out detonation, but your remarks between the different composites of headgaskets does makes sense as far as expansion/contraction. I did have the cometics that came with the motor/heads I bought, if you look at them, there are some flat spots when compared to the rest of the gasket. You could tell where the head lifted in spots. Have people ever ran 2 sets of gaskets on a head? For instance, if I was to run my fel-pro's and then cometics over/under them? I know compression would drop a tad but, but I am a boost motor, so the lower the better. Just a thought I had and I don't know the answer to!
 

· Registered
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154 Posts
It's no show truck under the hood, but it works :)

2000 4.7 Paxton Novi 1000... Coated head unit and charge pipe.
It's just nice to see a charged 4.7. I've nto found any on my search and was beginning to think they didn't actually exsist. lol.
 

· Registered
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116 Posts
Procharger Set-up (one of one?)

Here are some of my Procharger setup. Currently at 10psi @ 5000RPM. Below the bumper is the 3-core intercooler. Running the D1-SC with the 4.30' pulley. Boost is over 12psi at redline. The center console cover hides the digital FMU perfectly.
 

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