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Ported Apache or Thitek heads #2619334
02/10/19 12:57 PM
02/10/19 12:57 PM
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biff426 Offline OP
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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.

Re: Ported Apache or Thitek heads [Re: biff426] #2619351
02/10/19 01:55 PM
02/10/19 01:55 PM
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fbs63 Offline
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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.

Re: Ported Apache or Thitek heads [Re: biff426] #2619387
02/10/19 03:04 PM
02/10/19 03:04 PM
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Dragula Offline
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Send them to Six-pack gut on here. He is super reasonable. He gets my vote at 373cfm at .600

Last edited by Dragula; 02/10/19 03:05 PM.

'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)
Re: Ported Apache or Thitek heads [Re: biff426] #2619565
02/10/19 10:47 PM
02/10/19 10:47 PM
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biff426 Offline OP
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I contacted six pack gut I like his work......he is a few months out I would really like to race in April.

Re: Ported Apache or Thitek heads [Re: biff426] #2619590
02/10/19 11:42 PM
02/10/19 11:42 PM
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Dragula Offline
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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)
Re: Ported Apache or Thitek heads [Re: biff426] #2619688
02/11/19 10:06 AM
02/11/19 10:06 AM
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Trumbauersville PA
ric3xrt Offline
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Frankenstein has some Thiteks on Ebay right now for 3k done ready to run just add valve gear.


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



Re: Ported Apache or Thitek heads [Re: ric3xrt] #2619691
02/11/19 10:18 AM
02/11/19 10:18 AM
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fbs63 Offline
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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.

Re: Ported Apache or Thitek heads [Re: biff426] #2619694
02/11/19 10:47 AM
02/11/19 10:47 AM
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ric3xrt Offline
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they just used a stock photo they have on their web page.


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



Re: Ported Apache or Thitek heads [Re: ric3xrt] #2619726
02/11/19 12:05 PM
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biff426 Offline OP
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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.

Re: Ported Apache or Thitek heads [Re: biff426] #2619994
02/11/19 08:53 PM
02/11/19 08:53 PM
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Anyone know the minimum bore size for a 2.18 intake valve?

Re: Ported Apache or Thitek heads [Re: biff426] #2620166
02/12/19 07:55 AM
02/12/19 07:55 AM
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ric3xrt Offline
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not sure but I'm stuffing 2.20 in 4.06 bore 6.1 block right now.


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



Re: Ported Apache or Thitek heads [Re: biff426] #2620169
02/12/19 08:13 AM
02/12/19 08:13 AM
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ric3xrt Offline
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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.

Eagle Head 2.22a.jpgEagle Head 2.22b.jpg

Truth has no agenda, but those with an agenda make their own truth.
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Re: Ported Apache or Thitek heads [Re: biff426] #2620538
02/12/19 10:49 PM
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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?

Last edited by biff426; 02/12/19 10:50 PM.
Re: Ported Apache or Thitek heads [Re: biff426] #2620668
02/13/19 05:43 AM
02/13/19 05:43 AM
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sixpackgut Offline
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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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Re: Ported Apache or Thitek heads [Re: biff426] #2620891
02/13/19 06:29 PM
02/13/19 06:29 PM
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MattW Offline
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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.

2015-11-10 19.59.24.jpg
Last edited by MattW; 02/13/19 06:31 PM.
Re: Ported Apache or Thitek heads [Re: MattW] #2620961
02/13/19 09:27 PM
02/13/19 09:27 PM
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WO23Coronet Offline
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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?

Re: Ported Apache or Thitek heads [Re: WO23Coronet] #2621172
02/14/19 10:25 AM
02/14/19 10:25 AM
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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.

Re: Ported Apache or Thitek heads [Re: WO23Coronet] #2621202
02/14/19 11:50 AM
02/14/19 11:50 AM
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ric3xrt Offline
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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


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



Re: Ported Apache or Thitek heads [Re: biff426] #2621203
02/14/19 11:52 AM
02/14/19 11:52 AM
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ric3xrt Offline
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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.


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



Re: Ported Apache or Thitek heads [Re: ric3xrt] #2621501
02/15/19 12:57 AM
02/15/19 12:57 AM
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I could have them turned around in 2 weeks...just a thought.
Brian


Brian Hafliger

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