Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
Eagle Head #2592677
12/16/18 10:22 AM
12/16/18 10:22 AM
Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
ric3xrt Offline OP
pro stock
ric3xrt  Offline OP
pro stock

Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
My supplier dropped of some Eagle heads the other day, and I know most of us have seen these heads cut open, but here's some of the dissected parts I wanted to see.
1st boring head shot, 2 is what the oil passages look like(kind of), 3rd is a cross-section where the spark plugs mount...notice the water pocket. 4th is also of the water jacket between cylinders.

Eagle Head 1.jpgEagle Head Aa.jpgEagle Ab.jpgEagle Head Ak.jpg

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: Eagle Head [Re: ric3xrt] #2592678
12/16/18 10:24 AM
12/16/18 10:24 AM
Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
ric3xrt Offline OP
pro stock
ric3xrt  Offline OP
pro stock

Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
Been asked a few time is I know what the thickness is between the push rod hole and port wall ...so here's some photo's here's the Intake port cut horizontal , 1st shot is an ordination shot, 2nd is close up, 3rd the section is turned 180 degree, 4th is top and bottom side by side

Eagle Head Ac.jpgEagle head Ad.jpgEagle Head Ae.jpgEagle Head Af.jpg

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: Eagle Head [Re: ric3xrt] #2592679
12/16/18 10:26 AM
12/16/18 10:26 AM
Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
ric3xrt Offline OP
pro stock
ric3xrt  Offline OP
pro stock

Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
Closer shots, 3rd is not the greatest, I'll take some better ones later on in the week.
The thickness between the part wall and the pushrod hole is roughly .150.

Eagle Head Ag.jpgEagle Head Ah.jpgEagle Head Ai.jpgEagle Head Aj.jpg

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: Eagle Head [Re: ric3xrt] #2592680
12/16/18 10:28 AM
12/16/18 10:28 AM
Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
ric3xrt Offline OP
pro stock
ric3xrt  Offline OP
pro stock

Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
Intake Cross-section 1st two are the same port just different side of the cut, one has valve seat in it the other doesn't, last 2 are it's relation to the Exhaust port.

Eagle Head Al.jpgEagle Head Ala.jpgEagle Head Am.jpgEagle Head An.jpg

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: Eagle Head [Re: ric3xrt] #2592681
12/16/18 10:33 AM
12/16/18 10:33 AM
Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
ric3xrt Offline OP
pro stock
ric3xrt  Offline OP
pro stock

Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
I have BGE's ,Hellcat, Apaches and Pre Eagle s here that have been cut up in the same manner I'll try and get those posted in the next few weeks.


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: Eagle Head [Re: ric3xrt] #2592725
12/16/18 01:16 PM
12/16/18 01:16 PM
Joined: Nov 2003
Posts: 1,349
NW Indiana
F
fbs63 Offline
pro stock
fbs63  Offline
pro stock
F

Joined: Nov 2003
Posts: 1,349
NW Indiana
Great info. Thanks! Ever tubed the pushrod hole ala Gen II heads? If so any flow improvement?

Re: Eagle Head [Re: ric3xrt] #2592806
12/16/18 03:33 PM
12/16/18 03:33 PM
Joined: Jan 2005
Posts: 9,999
Kalispell Mt.
H
HotRodDave Offline
master
HotRodDave  Offline
master
H

Joined: Jan 2005
Posts: 9,999
Kalispell Mt.
looks like the PR pinch could almost be ground away and still have enough meat there, is that true? Same with the spring seat bump maybe? Also looks like radiusing the intake short turn at the peak maybe 1/2 inch up might help flow make the turn better, any testing to confirm or deny that?


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Eagle Head [Re: ric3xrt] #2593084
12/17/18 11:24 AM
12/17/18 11:24 AM
Joined: Jul 2008
Posts: 352
Canada
onig Offline
enthusiast
onig  Offline
enthusiast

Joined: Jul 2008
Posts: 352
Canada
Thanks for the info.
Would love to see the Aphaces and BGE's.


69 Dart, The BB is now gone, Soon to be Gen 3 Hemi...
Re: Eagle Head [Re: ric3xrt] #2598255
12/29/18 06:26 AM
12/29/18 06:26 AM
Joined: Jun 2003
Posts: 9,133
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
S

Joined: Jun 2003
Posts: 9,133
Charleston
Its very easy to go to far a pop a hole in the pushrod hole.

20181212_201651_Burst01.jpg
Last edited by sixpackgut; 12/29/18 06:28 AM.

Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: Eagle Head [Re: HotRodDave] #2598317
12/29/18 12:05 PM
12/29/18 12:05 PM
Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
ric3xrt Offline OP
pro stock
ric3xrt  Offline OP
pro stock

Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
Originally Posted By HotRodDave
looks like the PR pinch could almost be ground away and still have enough meat there, is that true? Same with the spring seat bump maybe?


the push rod bump is about .150 thick, the same with the valve spring bump , I don't have the measurement right here , right now, but if I remember it was in the .125-150 range.


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: Eagle Head [Re: fbs63] #2598319
12/29/18 12:09 PM
12/29/18 12:09 PM
Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
ric3xrt Offline OP
pro stock
ric3xrt  Offline OP
pro stock

Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
Originally Posted By fbs63
Great info. Thanks! Ever tubed the pushrod hole ala Gen II heads? If so any flow improvement?


On the 6.1 yes these no,
I've been polishing the humps to a mirror finish and leaving the rest of the port at a 60 Grit finish.


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: Eagle Head [Re: HotRodDave] #2598324
12/29/18 12:22 PM
12/29/18 12:22 PM
Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
ric3xrt Offline OP
pro stock
ric3xrt  Offline OP
pro stock

Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
Originally Posted By HotRodDave
Also looks like radiusing the intake short turn at the peak maybe 1/2 inch up might help flow make the turn better, any testing to confirm or deny that?



I was thinking about filling in the top of the port from the entrance to the valve spring bump and lower the floor the same amount to the short side radius.


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: Eagle Head [Re: ric3xrt] #2598348
12/29/18 01:20 PM
12/29/18 01:20 PM
Joined: Jun 2003
Posts: 9,133
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
S

Joined: Jun 2003
Posts: 9,133
Charleston
Originally Posted By ric3xrt
Originally Posted By HotRodDave
Also looks like radiusing the intake short turn at the peak maybe 1/2 inch up might help flow make the turn better, any testing to confirm or deny that?



I was thinking about filling in the top of the port from the entrance to the valve spring bump and lower the floor the same amount to the short side radius.


If you look at the cutaway you can almost see how the floor is cast to high as it gets to the intake flange. Im going to stop wasting my time on porting alot of the port on these heads because it all just comes down to the floor and making the valve seat fit the valve. All the other stuff doesnt matter.

The DP heads that were on the factory stock Barton car, the cnc only touches the floor.


Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: Eagle Head [Re: ric3xrt] #2598350
12/29/18 01:22 PM
12/29/18 01:22 PM
Joined: Nov 2003
Posts: 1,349
NW Indiana
F
fbs63 Offline
pro stock
fbs63  Offline
pro stock
F

Joined: Nov 2003
Posts: 1,349
NW Indiana
Sixpackgut, what's the vein for on the floor of the port? Pick up high or low lift #s?

Re: Eagle Head [Re: ric3xrt] #2598369
12/29/18 02:06 PM
12/29/18 02:06 PM
Joined: Jun 2003
Posts: 9,133
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
S

Joined: Jun 2003
Posts: 9,133
Charleston
If your flowing an eagle or apache head and you lay a pen or even your fingure on the floor, flow picks up.

Same thing even happened when I flowed hhp/bes $2k cnc job.

It also helps knowing how deep your grinding. It immediately bangs the .400 number over 300 cfm

Last edited by sixpackgut; 12/29/18 02:19 PM.

Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: Eagle Head [Re: sixpackgut] #2599146
12/31/18 12:28 PM
12/31/18 12:28 PM
Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
ric3xrt Offline OP
pro stock
ric3xrt  Offline OP
pro stock

Joined: Jan 2006
Posts: 1,374
Trumbauersville PA
Originally Posted By sixpackgut
If your flowing an eagle or apache head and you lay a pen or even your fingure on the floor, flow picks up.

Same thing even happened when I flowed hhp/bes $2k cnc job.

It also helps knowing how deep your grinding. It immediately bangs the .400 number over 300 cfm



The Vein , is there a certain Width that works best?


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: Eagle Head [Re: ric3xrt] #2599672
01/01/19 06:29 AM
01/01/19 06:29 AM
Joined: Jun 2003
Posts: 9,133
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
S

Joined: Jun 2003
Posts: 9,133
Charleston
I have not spent time comparing a sharp vein to one that is wider like in the photo but it seems to get the same results.

There is another thing on the eagles that helps. Machine cut on chamber on intake valve side. None of the Apache heads Ive seen has it

Screenshot_2019-01-01-03-30-50-1.png
Last edited by sixpackgut; 01/01/19 06:33 AM.

Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: Eagle Head [Re: sixpackgut] #2599673
01/01/19 06:38 AM
01/01/19 06:38 AM
Joined: Jun 2003
Posts: 9,133
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
S

Joined: Jun 2003
Posts: 9,133
Charleston
And it becomes very obvious why just a valve job will pick up flow 10 cfm +.

I bet a very light bowl blend, a vj and that spot in the chamber is 25 cfm. I get around 353 @.600 out of eagles.

Screenshot_2019-01-01-03-31-00-1.png
Last edited by sixpackgut; 01/01/19 06:39 AM.

Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: Eagle Head [Re: ric3xrt] #2600117
01/01/19 09:12 PM
01/01/19 09:12 PM
Joined: Apr 2003
Posts: 2,320
Tulsa, Oklahoma
340Cuda Offline
top fuel
340Cuda  Offline
top fuel

Joined: Apr 2003
Posts: 2,320
Tulsa, Oklahoma
Ray do you see any gains with valves at are polished on the back?

Re: Eagle Head [Re: 340Cuda] #2600234
01/01/19 11:36 PM
01/01/19 11:36 PM
Joined: Jun 2003
Posts: 9,133
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
S

Joined: Jun 2003
Posts: 9,133
Charleston
Originally Posted By 340Cuda
Ray do you see any gains with valves at are polished on the back?


I wouldn't think that would be that critical. But a lighter and larger valve would be helpful


Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Page 1 of 2 1 2

Advertisement
Forum Statistics
Forums32
Topics193,778
Posts2,261,346
Members25,797
Most Online1,424
Jun 20th, 2018
Moparts Newest Topics
1966 Plymouth Belvedere Dash Frame
by VegasCharger. 03/19/19 11:00 PM
Go-Mango Daytona for sale!!!
by RCKTMN. 03/19/19 09:58 PM
273 2V bogging
by dfsmopars. 03/19/19 09:41 PM
71 cuda shaker 340 hardware
by AARCONV. 03/19/19 09:31 PM

Powered by UBB.threads™ PHP Forum Software 7.7.1