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#2619334 - 02/10/19 09:57 AM Ported Apache or Thitek heads
biff426 Offline
super stock

Registered: 04/03/05
Posts: 750
Loc: Delaware
I have a set of Apache heads that need ported was going to send them to BES. By the time you do their CNC program (and I see varying results) you will have almost what a set of Thiteks cost. I have $1000 in the stock Apache heads. What are the thoughts this is a NA 426 6.1.based deal race only will never see the street.

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#2619351 - 02/10/19 10:55 AM Re: Ported Apache or Thitek heads [Re: biff426]
fbs63 Online   content
pro stock

Registered: 11/17/03
Posts: 1332
Loc: NW Indiana
I went through this also. The Thitek's are a better head for a race motor because of the material they are cast from, bronze guides and ductile iron seats.

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#2619387 - 02/10/19 12:04 PM Re: Ported Apache or Thitek heads [Re: biff426]
Dragula Offline


Registered: 05/02/04
Posts: 10417
Loc: Taxes R-US, NY
Send them to Six-pack gut on here. He is super reasonable. He gets my vote at 373cfm at .600


Edited by Dragula (02/10/19 12:05 PM)
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'71 Duster Pump Gas 512LD 2013 Mod Gas Winner GRS
https://www.youtube.com/watch?v=Z_XTmRBuvWs (6.19)
https://www.youtube.com/watch?v=gQZGfDBPROM (9.70 at 138.5mph)

'70 Cuda, Plan C....605 Hemi
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.31)
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#2619565 - 02/10/19 07:47 PM Re: Ported Apache or Thitek heads [Re: biff426]
biff426 Offline
super stock

Registered: 04/03/05
Posts: 750
Loc: Delaware
I contacted six pack gut I like his work......he is a few months out I would really like to race in April.

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#2619590 - 02/10/19 08:42 PM Re: Ported Apache or Thitek heads [Re: biff426]
Dragula Offline


Registered: 05/02/04
Posts: 10417
Loc: Taxes R-US, NY
Buy mine, sell yours...
_________________________
'71 Duster Pump Gas 512LD 2013 Mod Gas Winner GRS
https://www.youtube.com/watch?v=Z_XTmRBuvWs (6.19)
https://www.youtube.com/watch?v=gQZGfDBPROM (9.70 at 138.5mph)

'70 Cuda, Plan C....605 Hemi
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.31)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

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#2619688 - 02/11/19 07:06 AM Re: Ported Apache or Thitek heads [Re: biff426]
ric3xrt Offline
pro stock

Registered: 01/13/06
Posts: 1321
Loc: Trumbauersville PA
Frankenstein has some Thiteks on Ebay right now for 3k done ready to run just add valve gear.
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#2619691 - 02/11/19 07:18 AM Re: Ported Apache or Thitek heads [Re: ric3xrt]
fbs63 Online   content
pro stock

Registered: 11/17/03
Posts: 1332
Loc: NW Indiana
Originally Posted By ric3xrt
Frankenstein has some Thiteks on Ebay right now for 3k done ready to run just add valve gear.



The ones in the pic are machined for Jesel's rocker system. Unless it's just a representative pic.

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#2619694 - 02/11/19 07:47 AM Re: Ported Apache or Thitek heads [Re: biff426]
ric3xrt Offline
pro stock

Registered: 01/13/06
Posts: 1321
Loc: Trumbauersville PA
they just used a stock photo they have on their web page.
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#2619726 - 02/11/19 09:05 AM Re: Ported Apache or Thitek heads [Re: ric3xrt]
biff426 Offline
super stock

Registered: 04/03/05
Posts: 750
Loc: Delaware
That's a deal anyone have any experience with Frankenstein ? I sent them an email with a few questions looks like I might have a set of apaches for sale.

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#2619994 - 02/11/19 05:53 PM Re: Ported Apache or Thitek heads [Re: biff426]
biff426 Offline
super stock

Registered: 04/03/05
Posts: 750
Loc: Delaware
Anyone know the minimum bore size for a 2.18 intake valve?

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#2620166 - 02/12/19 04:55 AM Re: Ported Apache or Thitek heads [Re: biff426]
ric3xrt Offline
pro stock

Registered: 01/13/06
Posts: 1321
Loc: Trumbauersville PA
not sure but I'm stuffing 2.20 in 4.06 bore 6.1 block right now.
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#2620169 - 02/12/19 05:13 AM Re: Ported Apache or Thitek heads [Re: biff426]
ric3xrt Offline
pro stock

Registered: 01/13/06
Posts: 1321
Loc: Trumbauersville PA
for sh!ts and giggles here's a 2.22 valve in a eagle head, should give you anIdea of what kind of room you have.


Attachments
Eagle Head 2.22a.jpg

Eagle Head 2.22b.jpg


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Truth has no agenda, but those with an agenda make their own truth.
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#2620538 - 02/12/19 07:49 PM Re: Ported Apache or Thitek heads [Re: biff426]
biff426 Offline
super stock

Registered: 04/03/05
Posts: 750
Loc: Delaware
I did some mock up with the apache heads and a stock bore 6.1 I have here and it looks like it will be fine. I bought the heads next question I have is the comfort level using a solid stem 2.18 with beehive springs. I am planning to spin this thing 7300-7600. I am a little concerned. I was thinking of buying the hollow stem 2.18 manley sells and replace the solid stem valves. What's everyone's thoughts?


Edited by biff426 (02/12/19 07:50 PM)

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#2620668 - 02/13/19 02:43 AM Re: Ported Apache or Thitek heads [Re: biff426]
sixpackgut Offline
Drag Week Mod Champion

Registered: 06/08/03
Posts: 9126
Loc: Charleston
Originally Posted By biff426
I did some mock up with the apache heads and a stock bore 6.1 I have here and it looks like it will be fine. I bought the heads next question I have is the comfort level using a solid stem 2.18 with beehive springs. I am planning to spin this thing 7300-7600. I am a little concerned. I was thinking of buying the hollow stem 2.18 manley sells and replace the solid stem valves. What's everyone's thoughts?


Sounds like $400 endeavor whether you change valves or springs. Except you may be able to sell the springs off your heads. I think it would be hard to sell the valves.

One point would be, not sure you can fit dual springs on Frankenstein's setup.
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#2620891 - 02/13/19 03:29 PM Re: Ported Apache or Thitek heads [Re: biff426]
MattW Offline
master

Registered: 06/02/05
Posts: 2678
Loc: Ontario Canada
Originally Posted By biff426
Anyone know the minimum bore size for a 2.18 intake valve?


Stock Apache on stock 5.7 bore no gasket.


Attachments
2015-11-10 19.59.24.jpg




Edited by MattW (02/13/19 03:31 PM)

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#2620961 - 02/13/19 06:27 PM Re: Ported Apache or Thitek heads [Re: MattW]
WO23Coronet Offline
master

Registered: 01/08/08
Posts: 4148
Loc: Canada
Originally Posted By MattW
Originally Posted By biff426
Anyone know the minimum bore size for a 2.18 intake valve?


Stock Apache on stock 5.7 bore no gasket.


How much radial clearance did the Apaches and stock 5.7 bore have?

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#2621172 - 02/14/19 07:25 AM Re: Ported Apache or Thitek heads [Re: WO23Coronet]
MattW Offline
master

Registered: 06/02/05
Posts: 2678
Loc: Ontario Canada
Originally Posted By WO23Coronet
Originally Posted By MattW
Originally Posted By biff426
Anyone know the minimum bore size for a 2.18 intake valve?


Stock Apache on stock 5.7 bore no gasket.


How much radial clearance did the Apaches and stock 5.7 bore have?


No idea.
IMO there is enough for it to open but add heat to it then shruggy
Good news is that it opens away from the wall.

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#2621202 - 02/14/19 08:50 AM Re: Ported Apache or Thitek heads [Re: WO23Coronet]
ric3xrt Offline
pro stock

Registered: 01/13/06
Posts: 1321
Loc: Trumbauersville PA
3.917 bore it's about .060 for the 2.14, exhaust is about .010

I'll make it a point to get some photos up in the next week
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Some of us are so open minded they only see their View




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#2621203 - 02/14/19 08:52 AM Re: Ported Apache or Thitek heads [Re: biff426]
ric3xrt Offline
pro stock

Registered: 01/13/06
Posts: 1321
Loc: Trumbauersville PA
look into dual spring LS springs
If you go hollow pm I'll buy the 2.18s you have also hit me up with a price on those apaches.
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Truth has no agenda, but those with an agenda make their own truth.
Some of us are so open minded they only see their View




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#2621501 - 02/14/19 09:57 PM Re: Ported Apache or Thitek heads [Re: ric3xrt]
ou812 Offline


Registered: 01/31/03
Posts: 5381
Loc: SoCal
I could have them turned around in 2 weeks...just a thought.
Brian
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