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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: AlexP]
#1730139
01/16/15 05:20 PM
01/16/15 05:20 PM
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Joined: Jan 2008
Posts: 4,255
Canada
WO23Coronet
master
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master
Joined: Jan 2008
Posts: 4,255
Canada
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Are the mains a weak spot in the Gen III's?
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: WO23Coronet]
#1730140
01/16/15 06:19 PM
01/16/15 06:19 PM
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Joined: Sep 2008
Posts: 656
Florida
CJD AUTOMOTIVE
mopar
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mopar
Joined: Sep 2008
Posts: 656
Florida
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Quote:
Quote:
The early 5.7's were never designed for anything more then what they did and as soon as they started going over 400 hp the cylinders would not stay round. That's part of the reason SRT came out with the 6.1's so they could design in reinforcements inside the casting to increase the structural integrity that was needed for the increase in horsepower.
I don't know about that, the early 5.7's (03-05) are supposed to be the beefiest of the early blocks and plenty of them well over 600 HP and I've never heard of a cylinder wall distortion issue, especially at 400 HP, which is pretty low. As a matter of fact the 5.7 is supposed to have beefier cylinder walls than a 6.1 as a general rule. The 6.1 was designed on its own merit and not because of a "problem" with the 5.7, I'd even guess the 6.1 was designed almost side by side with the 5.7 at the onset of Gen III HEMI design (2000 ish?)
Actually the block was ready for 2002 production in trucks, but Mercedes having just acquired Chrysler, did not like the fact that the block did not have MDS provisions, and didn't want two different blocks. The redesign is what delayed the 5.7 until 2003, and why the 5.9 Magnum was used instead. My understanding is that SRT group designed the 6.1 to their specs. SRT and Mopar Performance are separate groups that didn't (maybe still don't) play well together. MP wanted to release the 6.1 as a crate motor, but SRT wasn't having it. MP then stroked a 5.7 and offered it carb'd or injected, if I remember something over 500 HP. This started a [Edited by Moparts - Family Friendly Site - Keep it clean] storm between SRT and MP. As you can see, 6.1 blocks will be available now that SRT is done with them. 6.2 and SRT 6.4's are available now, but only as short blocks in the 4K range.
Craig Scholl CJD Automotive, LLC Jacksonville, FL www.CJDAUTOMOTIVE.com904-400-1802 "I own a Mopar. I already know it won't be in stock, won't ship tomorrow, and won't fit without modification"
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: CJD AUTOMOTIVE]
#1730141
01/16/15 06:25 PM
01/16/15 06:25 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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The 392/540hp crate were 6.1 based with 3.79 cranks.
Mopar to the bone!!!
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: WO23Coronet]
#1730142
01/16/15 06:56 PM
01/16/15 06:56 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
master
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master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Are the mains a weak spot in the Gen III's?
I don't think so. BES ran a 5.7 with stock bolts and caps. 700hp 
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: MattW]
#1730143
01/16/15 07:47 PM
01/16/15 07:47 PM
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Joined: Feb 2007
Posts: 72
San Angelo, Texas
Cevidicus
member
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member
Joined: Feb 2007
Posts: 72
San Angelo, Texas
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I wouldn't mind buying a 6.2 short block. Would be a great foundation for a turbo motor.
Anybody have a part number for one or a link?
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: 72Swinger]
#1730144
01/16/15 09:37 PM
01/16/15 09:37 PM
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Joined: Sep 2008
Posts: 656
Florida
CJD AUTOMOTIVE
mopar
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mopar
Joined: Sep 2008
Posts: 656
Florida
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Quote:
The 392/540hp crate were 6.1 based with 3.79 cranks.
Yes, I meant before the release. The 5.7 stroker made almost 600 HP. SRT and MP then got together on the 6.1.
I was still a dealer tech at the time but got to go to the Mothership at Sterling Heights on several occasions and talk with the engineers. Not sure how much is true, but was told roughly the same from a few different engineers.
Craig Scholl CJD Automotive, LLC Jacksonville, FL www.CJDAUTOMOTIVE.com904-400-1802 "I own a Mopar. I already know it won't be in stock, won't ship tomorrow, and won't fit without modification"
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: Cevidicus]
#1730145
01/16/15 09:41 PM
01/16/15 09:41 PM
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Joined: Sep 2008
Posts: 656
Florida
CJD AUTOMOTIVE
mopar
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mopar
Joined: Sep 2008
Posts: 656
Florida
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Quote:
I wouldn't mind buying a 6.2 short block. Would be a great foundation for a turbo motor.
Anybody have a part number for one or a link?
Part number is 68262362AA. They have it on STAR restriction for QC. You'll need a VIN from a Hellcat and request the part based on other than warranty issue, i.e. hydro-lock from water crossing, etc...
Craig Scholl CJD Automotive, LLC Jacksonville, FL www.CJDAUTOMOTIVE.com904-400-1802 "I own a Mopar. I already know it won't be in stock, won't ship tomorrow, and won't fit without modification"
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: CJD AUTOMOTIVE]
#1730146
01/22/15 11:50 PM
01/22/15 11:50 PM
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Joined: Nov 2003
Posts: 16
Los Angeles, California
mdeane
member
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member
Joined: Nov 2003
Posts: 16
Los Angeles, California
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The information on the early 5.7 blocks going out of round over 400 hp and creating the reason for the development of the 6.1's came directly from one of the SRT engineers.
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: MattW]
#1730147
01/23/15 12:15 AM
01/23/15 12:15 AM
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Joined: Dec 2007
Posts: 486
IL
knyech1
mopar
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mopar
Joined: Dec 2007
Posts: 486
IL
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Quote:
Quote:
Are the mains a weak spot in the Gen III's?
I don't think so. BES ran a 5.7 with stock bolts and caps. 700hp
Typically the cylinders will crack under higher hp. Have seen some crack at 750 and some live past 1200hp, fairly dependent on tune.
knyech1-
'71 Sassy Grass Demon 340/904. Pump gas, 1.61 60ft, 7.439 1/8 @ 95mph, 11.824 1/4 @ 111mph
"Not too bad for a pump gas 340, full of used parts and hillbilly ported stock heads." - V.B.
'03 2500 5.9L HO 6-spd on 35's. 395hp/755ft-lb at tires.
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: knyech1]
#1730148
01/23/15 06:21 AM
01/23/15 06:21 AM
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Joined: Aug 2008
Posts: 22
NE OHIO
SRT440DUSTER
member
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member
Joined: Aug 2008
Posts: 22
NE OHIO
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I wouldnt be so quick to write off the vvt's. High horse performance just posted a dyno graph of a 5.7 with comp cams 274 , cam phaser and full exhaust making 442 hp and 413ftlbs at the wheel.
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: SRT440DUSTER]
#1730149
01/23/15 08:13 AM
01/23/15 08:13 AM
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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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Quote:
I wouldnt be so quick to write off the vvt's. High horse performance just posted a dyno graph of a 5.7 with comp cams 274 , cam phaser and full exhaust making 442 hp and 413ftlbs at the wheel.
They did, about 2 years ago. VVT's are just as good as any older Gen III just more $$$$ and headache for the average hot rodder to use with whats currently available. The one thing about them is if you score one, the worst head it would have is the Eagle which is as good as a W5.
Mopar to the bone!!!
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: mdeane]
#1730150
01/23/15 01:24 PM
01/23/15 01:24 PM
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Joined: Jan 2008
Posts: 4,255
Canada
WO23Coronet
master
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master
Joined: Jan 2008
Posts: 4,255
Canada
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Maybe so, but history says otherwise, PLENTY of 5.7's over 400 HP (well over) with no issues
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: gregsdart]
#1730151
02/12/15 06:38 AM
02/12/15 06:38 AM
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Joined: Dec 2003
Posts: 628
Denison,Ia.
Cuda367
mopar
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mopar
Joined: Dec 2003
Posts: 628
Denison,Ia.
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Any news now on ship date. I have one on order and received a ship date of feb 4then moved to 10th then 17th and now no date indicated. Have you heard anything?
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: Cuda367]
#1730152
02/12/15 10:38 AM
02/12/15 10:38 AM
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Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
gregsdart
OP
master
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OP
master
Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
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Some time ago I was told late Feb, early March. Who gave you a ship date?
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: gregsdart]
#1730153
02/12/15 10:57 AM
02/12/15 10:57 AM
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Joined: Dec 2003
Posts: 628
Denison,Ia.
Cuda367
mopar
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mopar
Joined: Dec 2003
Posts: 628
Denison,Ia.
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The dealer I ordered it from received the notice or information. He received it from Chrysler.
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: Cuda367]
#1730154
02/13/15 09:40 AM
02/13/15 09:40 AM
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Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
gregsdart
OP
master
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OP
master
Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
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That is good to hear. We should get them SOME day!
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: gregsdart]
#1730155
02/15/15 01:53 PM
02/15/15 01:53 PM
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Joined: Apr 2009
Posts: 3,415
Toronto
mshred
master
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master
Joined: Apr 2009
Posts: 3,415
Toronto
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Does anyone know if these blocks are finish machined? Cam bearings installed? If so, I think I am in for a few! Where are you guys ordering from??? I just got my Apache heads today, so the flame has been lit again! 
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: mshred]
#1730156
02/15/15 02:54 PM
02/15/15 02:54 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
master
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master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Does anyone know if these blocks are finish machined? Cam bearings installed? If so, I think I am in for a few! Where are you guys ordering from??? I just got my Apache heads today, so the flame has been lit again!
Matthew
My understanding is that they are fully machined
I'm thinking that they (Fiat) is probably waiting to see how many orders to fill before the production starts?
At the price that they were quoting they will sell a bunch. IMO
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: MattW]
#1730157
02/15/15 04:22 PM
02/15/15 04:22 PM
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Joined: Aug 2003
Posts: 3,101
cincinnati ohio
mcat4321
master
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master
Joined: Aug 2003
Posts: 3,101
cincinnati ohio
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what is the price for a fully machined 6.1 block?
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: mcat4321]
#1730158
02/15/15 04:38 PM
02/15/15 04:38 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
master
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master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
what is the price for a fully machined 6.1 block?
1st page 3rd thread.
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