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Re: New 5.7 hemi eagle head
[Re: hudsonhornet7x]
#934519
10/31/14 06:39 PM
10/31/14 06:39 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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IMO its a toss up between the Eagles or 6.1. The 6.1's have hollow stem valves and a 73cc chamber, Eagles are solid stem and 65cc chamber so you need to plan accordingly.
Mopar to the bone!!!
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Re: New 5.7 hemi eagle head
[Re: hemidup]
#934521
11/01/14 09:47 AM
11/01/14 09:47 AM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Quote:
For a normally aspirated 392, what heads would you prefer for a street engine?
Original 5.7
6.1
Eagle
Apache
Also why would you pick the particular head?
With a street motor that your not going to spin to the moon I'd go with worked over original 5.7 heads. The faster moving air from the 5.7 port will give you quicker throttle response and the low end torque needed for the street. My combo is a 392 with hand ported 5.7 heads and to get the most from them a 2.08" int valve and a 1.62" exh valve. I also D shaped and gasket matched the exh port opening.
Jerry you stoked your 6.1 crank to 3. Something correct? Using a Honda journal?
Plus I've heard in order to use a 2.08 valve you need to change the seat?
I like your setup and info. Thanks for sharing. Matt
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Re: New 5.7 hemi eagle head
[Re: cudaman1969]
#934524
11/01/14 05:41 PM
11/01/14 05:41 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Ok i have read this entire article. questions
1. bore-stroke of the 5.7
2. bore-stroke of the 6.1
3. bore-stroke of the 6.4
if going to bore-stroke the engine, would the 5.7 be the least expensive(it will be in the car)?
can the early heads on the 5.7 be ported to the size of the eagles?
I'm confused on the cams working with the older vs new head? machined differently? My project was to find an older Challenger then install the 6.1 engine,($5200.00) now it looks like the 5.7 would could be made up just as well, later upgrade to the hellcat supercharger. This is all new to me so steer me right please.
1 3.92 x3.58
2 4.055x 3.58
3 4.090x 3.72
4 bore and stroke will be cheapest depending on which block is cheapest.
yes
don't know about finding a new 6,1. good luck and jump on it if you find one. 
Matt
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Re: New 5.7 hemi eagle head
[Re: hemidup]
#934525
11/01/14 05:48 PM
11/01/14 05:48 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
|
Quote:
Quote:
Quote:
Quote:
For a normally aspirated 392, what heads would you prefer for a street engine?
Original 5.7
6.1
Eagle
Apache
Also why would you pick the particular head?
With a street motor that your not going to spin to the moon I'd go with worked over original 5.7 heads. The faster moving air from the 5.7 port will give you quicker throttle response and the low end torque needed for the street. My combo is a 392 with hand ported 5.7 heads and to get the most from them a 2.08" int valve and a 1.62" exh valve. I also D shaped and gasket matched the exh port opening.
Jerry you stoked your 6.1 crank to 3. Something correct? Using a Honda journal?
Plus I've heard in order to use a 2.08 valve you need to change the seat?
I like your setup and info. Thanks for sharing. Matt
Your welcome. I offset ground the 6.1 crankshaft to a 3.80" stroke then used Eagle 1.88" Honda rod journal connecting rods, .927 pin with Ross pistons on top. With a 5.7 head you can get by using 2.05" int and 1.60" valves with the stock seats.
Thanks Jerry 
I would love to pick you brain next year about putting a stroked 5.7 in my 03 Dakota.
Would like to know if my NGC will run the hemi with a tune?
Matt
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Re: New 5.7 hemi eagle head
[Re: MattW]
#934526
11/01/14 06:41 PM
11/01/14 06:41 PM
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Joined: Jan 2004
Posts: 8,825
fredericksburg,va
cudaman1969
Itch Nutz
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Itch Nutz
Joined: Jan 2004
Posts: 8,825
fredericksburg,va
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Quote:
Quote:
Ok i have read this entire article. questions
1. bore-stroke of the 5.7
2. bore-stroke of the 6.1
3. bore-stroke of the 6.4
if going to bore-stroke the engine, would the 5.7 be the least expensive(it will be in the car)?
can the early heads on the 5.7 be ported to the size of the eagles?
I'm confused on the cams working with the older vs new head? machined differently? My project was to find an older Challenger then install the 6.1 engine,($5200.00) now it looks like the 5.7 would could be made up just as well, later upgrade to the hellcat supercharger. This is all new to me so steer me right please.
1 3.92 x3.58
2 4.055x 3.58
3 4.090x 3.72
4 bore and stroke will be cheapest depending on which block is cheapest.
yes
don't know about finding a new 6,1. good luck and jump on it if you find one.
Matt
"don't know about finding a new 6,1. good luck and jump on it if you find one"
can get a used one with 59,000 miles for $5200 out of a Charger with accessory's and boxes or one for $4,000 with 100,000 miles. maybe sell the 5.7
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Re: New 5.7 hemi eagle head
[Re: hemidup]
#934528
11/01/14 09:35 PM
11/01/14 09:35 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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I'd love to put a 5.7 in my 08 Dakota as well. Need to get all I can out of this 4.7 first though, it only has about 76K on it. When does the 545rfe become worthless? I would want to go about 50hp shy of that lol.
Mopar to the bone!!!
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Re: New 5.7 hemi eagle head
[Re: sixpackgut]
#934531
03/12/15 04:41 PM
03/12/15 04:41 PM
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Joined: Nov 2006
Posts: 733
jacksonville,FLORIDA
slammedR/T
super stock
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super stock
Joined: Nov 2006
Posts: 733
jacksonville,FLORIDA
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Looking at 6.4 block and apache heads for a turbo motor in the 1,500+hp range, good idea???
2000 Dakota R/T, 408 magnum, 727, Indy heads 1000cfm 4150 carb, 93 octane fuel. motor; 10.258 @ 132.78 200 shot; 9.262 @ 144.69 racemagnum
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Re: New 5.7 hemi eagle head
[Re: sixpackgut]
#934532
03/12/15 05:58 PM
03/12/15 05:58 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Quote:
 67
MattW, have you ever flowed a stock 6.1 head? Not Webers inflated numbers
That is the only head I'm missing. And my quote was from the numbers on that site 
I know BES did not favor the eagle head too much. they said it needed more work than the 6.1 to achieve the numbers for the first engine master challenge that the G3 won.
Matt
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Re: New 5.7 hemi eagle head
[Re: slammedR/T]
#934533
03/12/15 06:04 PM
03/12/15 06:04 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Looking at 6.4 block and apache heads for a turbo motor in the 1,500+hp range, good idea???
IMO yes.
All my info is from what others have stated and engine article i've found in mags.
As of right now I'm a closet G3 guy.
Soon to be a veteran
The 6.4 is a stronger block than the rest. IMO the Hellcat is a stock 6.4 that has been machined differently.
The only problem I see with the apache heads is the material they use for them. In high boost I believe the head will start to warp. At what level is the real question.
Matt
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Re: New 5.7 hemi eagle head
[Re: slammedR/T]
#934535
03/12/15 06:47 PM
03/12/15 06:47 PM
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Joined: Jul 2008
Posts: 361
Canada
onig
enthusiast
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enthusiast
Joined: Jul 2008
Posts: 361
Canada
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Waiting to see those numbers.
69 Dart
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Re: New 5.7 hemi eagle head
[Re: sixpackgut]
#934536
03/12/15 09:07 PM
03/12/15 09:07 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
OP
master
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OP
master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Quote:
Quote:
Quote:
67
MattW, have you ever flowed a stock 6.1 head? Not Webers inflated numbers
That is the only head I'm missing. And my quote was from the numbers on that site
I know BES did not favor the eagle head too much. they said it needed more work than the 6.1 to achieve the numbers for the first engine master challenge that the G3 won.
Matt
Ill be flowing a set in about a hour and our numbers have been identical
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