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Cotharyus
GenI
 
8/10/2002
08:45:24
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 Subject: 4.7 head portting?
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Message:
I know KRC does some 4.7 head porting. Does anyone else do this? How much power can you expect to gain from it? Is it high end, low end, or all around? Sorry to ask so many questions about it, but I'm fairly new to performance tricks - I'm not even really sure what porting does to acomplish a power increase. Anyone care to tackle explaining that one?
2001 QC 4x4, 4.7,5 spd, LSD, K&N Gen II Intake
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yates-in-DE
GenIII
8/10/2002
10:48:47
|  RE: 4.7 head portting?
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Message:
Cotharyus,
I hope this link helps you out. Read it and it will kinda explain headporting. It has all around gains and if done correctely can get 20+ hp.
Head Porting
Good Luck,
My VW Killer
Lynn
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conig
Dodge Dakota
JOIN HERE
8/10/2002
23:08:59
| RE: 4.7 head portting?
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Message:
hey yates got any pics of that 2-3 drop yet.
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yates-in-DE
GenIII
8/11/2002
05:40:04
| RE: 4.7 head portting?
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Message:
Conig,
Hopefully this week. My friend comes back from holiday on wendsday and should have my Digi back. I sure miss it.
But as soon as I get it you will see them.
Later,
My VW Killer
Lynn
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sandman
Dodge Dakota
JOIN HERE
8/11/2002
10:14:40
| RE: 4.7 head portting?
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Message:
The info Yates gave you is right on the money!!! I eanted to add that flow honeing can also work wounders. Afer you port and polish your heads send them to be flow honed. They take a viscous abrasive and flow it through your heads at extremely high pressures. It will increase flow and does an excellent job. I have some friends that gasket match their intake manifold and blend the bowl area and send the heads and intake out for the flow honeing and they have all had great results. Alot of them buy after market heads and then do this.
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