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6.1 blocks are coming,,,,,,,,,,,
#1730099
01/14/15 11:16 PM
01/14/15 11:16 PM
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Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
gregsdart
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
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I got a phone message from Kevin Moore today. He received an email from Mopar saying the 6.1 blocks ought to be out late Feb, early March. Great news! At less than a grand, a brand new block honed to 4.055 only needing cam bearings! My motor will be 401.68 cubes, a bit better for the Apache heads!
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: gregsdart]
#1730100
01/14/15 11:42 PM
01/14/15 11:42 PM
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Joined: Nov 2013
Posts: 723
Southern Alberta
Uberpube
super stock
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super stock
Joined: Nov 2013
Posts: 723
Southern Alberta
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: gregsdart]
#1730101
01/15/15 12:03 AM
01/15/15 12:03 AM
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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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Quote:
I got a phone message from Kevin Moore today. He received an email from Mopar saying the 6.1 blocks ought to be out late Feb, early March. Great news! At less than a grand, a brand new block honed to 4.055 only needing cam bearings! My motor will be 401.68 cubes, a bit better for the Apache heads!
What about 6.4 blocks or are they the smae block?
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: 6.1 blocks are coming,,,,,,,,,,,
[Re: Uberpube]
#1730102
01/15/15 12:09 AM
01/15/15 12:09 AM
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Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
gregsdart
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
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Frostbitefalls MN (Rocky&Bullw...
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P5153816AB The price I got on 10/26/14 - 927.00 + 16.95 shipping (?)for a total of $943.95 Monicatti Dodge or K & S performance, Kevin 248 439 0261 https://www.monicattichrysler.com
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: slammedR/T]
#1730103
01/15/15 12:14 AM
01/15/15 12:14 AM
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Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
gregsdart
OP
I Live Here
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OP
I Live Here
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Frostbitefalls MN (Rocky&Bullw...
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09 and up 5.7 and 6.4 are both Variable valve timing (VVT) blocks, which have different cams, covers, and cranks. They need more room up front to package all this, so the front of the block is different. Not sure on the cranks, but they need a different shape on the front, not sure how that is accomplished.
Last edited by gregsdart; 01/15/15 12:36 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: gregsdart]
#1730104
01/15/15 12:21 AM
01/15/15 12:21 AM
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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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how far can you bore a 6.1 block?
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: 6.1 blocks are coming,,,,,,,,,,,
[Re: gregsdart]
#1730105
01/15/15 12:25 AM
01/15/15 12:25 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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They,Mopar, have said they NEVER re-cast ANYTHING without revisions/improvements. I hope one of those is a cylinder thick enough to 4.20 ish. THAT would be a step in the right direction. Maybe they have applied some of the same cooling tweaks as the Hellcat block. The old 6.1 blocks were simply assembly line blocks left over when they switched to the 6.4 in 2010-11. I have no desire to buy a VVT block of any kind.
Mopar to the bone!!!
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: slammedR/T]
#1730106
01/15/15 12:26 AM
01/15/15 12:26 AM
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Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
gregsdart
OP
I Live Here
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OP
I Live Here
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Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
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I here about .020 is it. The only other option for a non VVT block is the aluminum block, ($4,000) which I believe can go 4.185?
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: slammedR/T]
#1730107
01/15/15 12:28 AM
01/15/15 12:28 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:
how far can you bore a 6.1 block?
Rays is 4.09 I believe. That is about it on those. Hopefully these new ones AT LEAST have 6.4 sleeves that start at 4.09.
Mopar to the bone!!!
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: 72Swinger]
#1730108
01/15/15 12:31 AM
01/15/15 12:31 AM
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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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Quote:
They,Mopar, have said they NEVER re-cast ANYTHING without revisions/improvements. I hope one of those is a cylinder thick enough to 4.20 ish. THAT would be a step in the right direction. Maybe they have applied some of the same cooling tweaks as the Hellcat block. The old 6.1 blocks were simply assembly line blocks left over when they switched to the 6.4 in 2010-11. I have no desire to buy a VVT block of any kind.
what is wrong with the vvt blocks?
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: 6.1 blocks are coming,,,,,,,,,,,
[Re: gregsdart]
#1730109
01/15/15 12:33 AM
01/15/15 12:33 AM
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Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
gregsdart
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 10,013
Frostbitefalls MN (Rocky&Bullw...
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Quote:
09 and up 5.7 and 6.4 are both Variable valve timing (VVT) blocks, which have different cams, covers, and cranks. They need more room up front to package all this, so the front of the block is different. Not sure on the cranks, but they need a different shape on the front, not sure how that is accomplished.
Last edited by gregsdart; 01/15/15 12:37 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: slammedR/T]
#1730110
01/15/15 12:39 AM
01/15/15 12:39 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:
Quote:
They,Mopar, have said they NEVER re-cast ANYTHING without revisions/improvements. I hope one of those is a cylinder thick enough to 4.20 ish. THAT would be a step in the right direction. Maybe they have applied some of the same cooling tweaks as the Hellcat block. The old 6.1 blocks were simply assembly line blocks left over when they switched to the 6.4 in 2010-11. I have no desire to buy a VVT block of any kind.
what is wrong with the vvt blocks?
Nothing if your name is Steff lol! Cams are expensive and timing chains are subject IMO. They need the VVT feature locked out or deleted for the hot rodder. Quality of them is good to go though, just more of headache and $$$ for no advantage other than availability.
Mopar to the bone!!!
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: gregsdart]
#1730111
01/15/15 12:41 AM
01/15/15 12:41 AM
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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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I read the 6.4 blocks have better cooling and bigger bore capabilitys than the 6.1 blocks, is this true? if so why not run the 6.4 block even though they are vvt?
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: 6.1 blocks are coming,,,,,,,,,,,
[Re: 72Swinger]
#1730112
01/15/15 12:43 AM
01/15/15 12:43 AM
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Joined: Jan 2012
Posts: 1,543
USA
hudsonhornet7x
pro stock
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pro stock
Joined: Jan 2012
Posts: 1,543
USA
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I have a 6.4 short block I am building and from what I gather the Hellcat has nearly identical timing chains as the 6.4. I remember there being problems with the 5.7 but has anyone heard of or seen a problem with the 6.4 chain?
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: slammedR/T]
#1730113
01/15/15 12:46 AM
01/15/15 12:46 AM
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Joined: Jan 2012
Posts: 1,543
USA
hudsonhornet7x
pro stock
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pro stock
Joined: Jan 2012
Posts: 1,543
USA
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Quote:
I read the 6.4 blocks have better cooling and bigger bore capabilitys than the 6.1 blocks, is this true? if so why not run the 6.4 block even though they are vvt?
A.C. Nutter has come up with a solution for us hot rodders that want to use a pre-vvt cam in a vvt block. Gets rid of it and also uses a different timing chain from what I understand.
http://www.nutterracingengines.com/
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: slammedR/T]
#1730114
01/15/15 12:54 AM
01/15/15 12:54 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 read the 6.4 blocks have better cooling and bigger bore capabilitys than the 6.1 blocks, is this true? if so why not run the 6.4 block even though they are vvt?
Honestly just sit tight and see what this new 6.1 block turns out to be. The aftermarket support sucks for the Gen III market as a whole but it really sucks more for the VVT blocks. Only failure I have seen is a guy with a Procharged 426" 6.4 do a REALLY long, like 10 minutes, WOT run and it seized the middle cam bearing, sheared the cam dowel and the rest is history. But the chain was fine lol! Im not even sure if the cam bearings are even serviceable on the VVT blocks.
Mopar to the bone!!!
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: hudsonhornet7x]
#1730115
01/15/15 12:55 AM
01/15/15 12:55 AM
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Joined: Sep 2003
Posts: 10,645
Houston, Tx
AlexP
I Live Here
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I Live Here
Joined: Sep 2003
Posts: 10,645
Houston, Tx
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I'm buying one.
Start another motor before I fire this one...sure why not.
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: 72Swinger]
#1730116
01/15/15 12:56 AM
01/15/15 12:56 AM
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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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Quote:
Quote:
I read the 6.4 blocks have better cooling and bigger bore capabilitys than the 6.1 blocks, is this true? if so why not run the 6.4 block even though they are vvt?
Honestly just sit tight and see what this new 6.1 block turns out to be. The aftermarket support sucks for the Gen III market as a whole but it really sucks more for the VVT blocks. Only failure I have seen is a guy with a Procharged 426" 6.4 do a REALLY long, like 10 minutes, WOT run and it seized the middle cam bearing, sheared the cam dowel and the rest is history. But the chain was fine lol! Im not even sure if the cam bearings are even serviceable on the VVT blocks.
Sounds like a 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: 6.1 blocks are coming,,,,,,,,,,,
[Re: 72Swinger]
#1730117
01/15/15 01:12 AM
01/15/15 01:12 AM
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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:
They,Mopar, have said they NEVER re-cast ANYTHING without revisions/improvements. I hope one of those is a cylinder thick enough to 4.20 ish. THAT would be a step in the right direction. Maybe they have applied some of the same cooling tweaks as the Hellcat block. The old 6.1 blocks were simply assembly line blocks left over when they switched to the 6.4 in 2010-11. I have no desire to buy a VVT block of any kind.
Man I hope your right!
What would be the purpose of recasting an old block? Warranty? They could of kept the ones they sold to INDY for dirt cheap!
I'm hoping they added some meat to the thing 
Matt
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Re: 6.1 blocks are coming,,,,,,,,,,,
[Re: MattW]
#1730118
01/15/15 01:23 AM
01/15/15 01:23 AM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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I will hold out to see what mopar-wholesale sells them for but i'm going to get one. Ever since 340Rick posted pictures of his pistons, I wanted to build another one. Ill save the Apache heads for the next build
Yes, mine is now 4.09 but I have some cylindet walls under .1
Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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