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Re: please share your gen 3 Hemi build [Re: sixpackgut] #1674850
09/23/14 06:25 PM
09/23/14 06:25 PM
Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger Offline
master
72Swinger  Offline
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Joined: Feb 2011
Posts: 4,302
Nebraska
Damn it! Wish I had the cabbage right now, how much are the valve covers needed?


Mopar to the bone!!!
Re: please share your gen 3 Hemi build [Re: 72Swinger] #1674851
09/23/14 06:36 PM
09/23/14 06:36 PM
Joined: Apr 2009
Posts: 3,427
Toronto
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mshred Offline
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Toronto
Do 6.4 heads bolt on to 5.7 blocks? Or will the bore size shroud the valve? (hopefully I am saying that right)....

Also, do they use all the same rocker gear as say an early 5.7, so that it can all just transfer over to the 5.7 head?

Re: please share your gen 3 Hemi build [Re: mshred] #1674852
09/23/14 06:41 PM
09/23/14 06:41 PM
Joined: Apr 2009
Posts: 3,427
Toronto
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mshred Offline
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Toronto
Oh, and is there a difference between the 6.4 truck head and the SRT head? Are they both "Apache"?

Re: please share your gen 3 Hemi build [Re: mshred] #1674853
09/23/14 07:07 PM
09/23/14 07:07 PM
Joined: Sep 2003
Posts: 10,645
Houston, Tx
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AlexP Offline
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Posts: 10,645
Houston, Tx
It's too early to find out about the truck heads. I wish I knew.

I have a feeling the hellcat heads are identical also. They said they're made from a completely different alloy also.

09 and up 5.7 (eagle) use the same cover as the 6.4. The area that seals against the spark plug tube is recessed, because the plug tubes are shorter.


My Build thread: Let the hemi swap begin!

1968 wanna be pro touring whatchamacallit with some fancy stuff and a new roof skin.
Re: please share your gen 3 Hemi build [Re: AlexP] #1674854
09/23/14 07:15 PM
09/23/14 07:15 PM
Joined: Apr 2009
Posts: 3,427
Toronto
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mshred Offline
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Toronto
Quote:

It's too early to find out about the truck heads. I wish I knew.

I have a feeling the hellcat heads are identical also. They said they're made from a completely different alloy also.

09 and up 5.7 (eagle) use the same cover as the 6.4. The area that seals against the spark plug tube is recessed, because the plug tubes are shorter.




So can the 6.4 heads work on a 5.7 bore? Even with say a .020" overbore? If so, I am going to pull the trigger on those heads that sixpackgut mentioned...wondering if they are bare or complete heads for that price also.

Re: please share your gen 3 Hemi build [Re: mshred] #1674855
09/23/14 07:24 PM
09/23/14 07:24 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Romeo MI
So can the 6.4 heads work on a 5.7 bore? Even with say a .020" overbore? If so, I am going to pull the trigger on those heads that sixpackgut mentioned...wondering if they are bare or complete heads for that price also.




Based on info from this read I would say no.. read it
for yourself
http://modernmoparforum.com/topic/12135-57-61-and-64-hemi-cylinder-head-comparison/

Re: please share your gen 3 Hemi build [Re: mshred] #1674856
09/23/14 07:27 PM
09/23/14 07:27 PM
Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger Offline
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72Swinger  Offline
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Posts: 4,302
Nebraska
I think Apaches need 4.06 or larger bores or a notch.


Mopar to the bone!!!
Re: please share your gen 3 Hemi build [Re: MR_P_BODY] #1674857
09/23/14 07:28 PM
09/23/14 07:28 PM
Joined: Apr 2009
Posts: 3,427
Toronto
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mshred Offline
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mshred  Offline
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Toronto
Quote:

So can the 6.4 heads work on a 5.7 bore? Even with say a .020" overbore? If so, I am going to pull the trigger on those heads that sixpackgut mentioned...wondering if they are bare or complete heads for that price also.




Based on info from this read I would say no.. read it
for yourself
http://modernmoparforum.com/topic/12135-57-61-and-64-hemi-cylinder-head-comparison/





I read that already...but I am wondering if with an overbore a 5.7 can use those heads? Although I am thinking no as well since there is a .170" difference in bore size between the 2 engines.

Re: please share your gen 3 Hemi build [Re: mshred] #1674858
09/23/14 08:13 PM
09/23/14 08:13 PM
Joined: Aug 2007
Posts: 498
El Dorado Ca
6
65signet Offline
mopar
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Joined: Aug 2007
Posts: 498
El Dorado Ca


1965 Plymouth Barracuda 273 M/SA
1970 Plymouth Duster 360/904 10.60s with J heads
Re: please share your gen 3 Hemi build [Re: Charger453] #1674859
09/23/14 11:34 PM
09/23/14 11:34 PM
Joined: Jan 2003
Posts: 344
Burlington, Ontario Canada
Dave_S Offline
enthusiast
Dave_S  Offline
enthusiast

Joined: Jan 2003
Posts: 344
Burlington, Ontario Canada
Charger; as for the electronics I have the MS3x box and the two harnesses, a pair of DIY Autotunes "Quadspark" coil driver boxes, boost control solenoid, air and coolant temp sensors. cam and crank sensors (OEM), coils (OEM),eight resistors for the low imp. injectors and a bunch of connectors from a junk yard harness. Almost all was purchased from www.diyautotune.com. The MS was bought in a kit form and the set up for the hemi is on their website.. There is a butt-load of wires in the harness, but I only used half....but half a "butt-load" is still a lot!
Eight injs., eight coils, TPS, temp sensors, fuel pump, power and ground. idle motor/solenoid (I don't use one)
It was a rewarding challenge.

8279108-wiring(2).jpg (415 downloads)

Dave Stillie
'73 Swinger
5.7 Hemi, 88mm turbo, powerglide, cal-tracs & 8 3/4
Mega-Squirt EFI
[email]8.93@149
[/email]
Re: please share your gen 3 Hemi build [Re: Dave_S] #1674860
09/23/14 11:38 PM
09/23/14 11:38 PM
Joined: Mar 2005
Posts: 867
Bellevue, NE
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Charger453 Offline OP
super stock
Charger453  Offline OP
super stock
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Joined: Mar 2005
Posts: 867
Bellevue, NE
And I don't like wires.lol
For budget reasons, I'll probably stick with a carb for a couple years, and if it's in the funds, swap over to injection at that time. I already have a CSU 750 E85 dual needle and seat carb so...

Re: please share your gen 3 Hemi build [Re: Charger453] #1674861
09/24/14 12:22 AM
09/24/14 12:22 AM
Joined: Jun 2003
Posts: 9,225
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
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Posts: 9,225
Charleston
I believe holley has the hemi harness done for their holley efi


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

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: please share your gen 3 Hemi build [Re: sixpackgut] #1674862
09/24/14 12:38 AM
09/24/14 12:38 AM
Joined: Sep 2003
Posts: 10,645
Houston, Tx
A
AlexP Offline
I Live Here
AlexP  Offline
I Live Here
A

Joined: Sep 2003
Posts: 10,645
Houston, Tx
My ms3x kit comes in a simple pre wired harness. No mess at all and the coil drivers are built into the box.


My Build thread: Let the hemi swap begin!

1968 wanna be pro touring whatchamacallit with some fancy stuff and a new roof skin.
Re: please share your gen 3 Hemi build [Re: AlexP] #1674863
09/24/14 12:50 AM
09/24/14 12:50 AM
Joined: Mar 2005
Posts: 867
Bellevue, NE
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Charger453 Offline OP
super stock
Charger453  Offline OP
super stock
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Joined: Mar 2005
Posts: 867
Bellevue, NE
Alex, I sent u a PM

Re: please share your gen 3 Hemi build [Re: Charger453] #1674864
09/24/14 01:37 AM
09/24/14 01:37 AM
Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger Offline
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72Swinger  Offline
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Posts: 4,302
Nebraska
It can be an expensive changeover, I know I'm in the middle of it, but the route you take depends on the core engine you end up with. I traded a 19yr old 400/448 for a worn out 6.1 that had dropped a valve. It needed bored .010 over and that turned into wth and stroking it. It came with new valves, one good head, a good 6.1 intake, New takeout pistons and rings, valvesprings, etc. The intake is why I chose the EFISource setup. If starting from scratch, going carb may save a few bucks but if efi is in the plans might as well get that ball rolling right off the bat.


Mopar to the bone!!!
Re: please share your gen 3 Hemi build [Re: 72Swinger] #1674865
09/24/14 01:52 AM
09/24/14 01:52 AM
Joined: Mar 2005
Posts: 867
Bellevue, NE
C
Charger453 Offline OP
super stock
Charger453  Offline OP
super stock
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Joined: Mar 2005
Posts: 867
Bellevue, NE
I'm not even sure I'll ever go EFI. I'm not against carbs and there are all sorts of cars running way faster than I ever will using em. I guess I'm just trying to weigh my options at this point. I have a kick ass blow thru carb and an awesome pump/regulator. None of that would be any use so we will see. If I want the car on the streets next year, EFI will probably have to wait. I'm guessing I'll be digging for loose change since I'm starting from scratch and I'll also be buying a turbo or two.

Re: please share your gen 3 Hemi build [Re: Charger453] #1674866
09/24/14 02:14 AM
09/24/14 02:14 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Posts: 52,972
Romeo MI
Thats why I'm going with EFI now... I figure it'll
be at least a year before I get a gen 3 turbo built
up and in the mean time I can run the EFI on my 416
and learn about it and get the feel of it before I
hang the EFI on the gen 3 turbo

Re: please share your gen 3 Hemi build [Re: MR_P_BODY] #1674867
09/24/14 03:04 AM
09/24/14 03:04 AM
Joined: Jan 2003
Posts: 4,152
SO. CAL.
7
70blackfish Offline
master
70blackfish  Offline
master
7

Joined: Jan 2003
Posts: 4,152
SO. CAL.
7.0 and 6.4 one is mine.......no build info

8279302-2hemi.jpg (321 downloads)
Re: please share your gen 3 Hemi build [Re: 70blackfish] #1674868
09/24/14 08:51 AM
09/24/14 08:51 AM
Joined: Jun 2003
Posts: 9,225
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
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Joined: Jun 2003
Posts: 9,225
Charleston
Quote:

7.0 and 6.4 one is mine.......no build info




Where have you been? You made car craft then you were to good for us?


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

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: please share your gen 3 Hemi build [Re: sixpackgut] #1674869
09/24/14 11:17 AM
09/24/14 11:17 AM
Joined: Jan 2003
Posts: 7,131
Amarillo, Texas
BBR Offline
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BBR  Offline
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Joined: Jan 2003
Posts: 7,131
Amarillo, Texas
Someone needs to start a "What works and what does not Gen 3 Hemi" thread and sticky that sucker to the top.

Stuff like: what front dress, what oil pan, what hp level the stock crank/rods/pistons typically decide to die, whose engine mounts and headers work well, what heads fit what blocks, etc etc etc.


Drag Week 2011 - 77th place - DD
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Drag Week 2014 - Kapooya
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