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Re: please share your gen 3 Hemi build
[Re: Cevidicus]
#1675092
10/18/14 11:52 AM
10/18/14 11:52 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:
Anybody have a part number for a 6.4 crank and a 6.4 short block?
Short block 68086564AB orRL086564AB
Crankshaft 5038339A
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Re: please share your gen 3 Hemi build
[Re: MattW]
#1675093
10/18/14 11:55 AM
10/18/14 11:55 AM
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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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Quote:
Quote:
Anybody have a part number for a 6.4 crank and a 6.4 short block?
Short block 68086564AB orRL086564AB
Crankshaft 5038339A
The 6.4 crankshaft is forged, correct?
Does anybody know if the 6.4 crank has the same oiling issues as a 5.7 crank does? Wondering if it is a good alternative to aftermarket forged crank for a stroker 5.7 motor.
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Re: please share your gen 3 Hemi build
[Re: mshred]
#1675094
10/18/14 02:42 PM
10/18/14 02:42 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:
Quote:
Quote:
Anybody have a part number for a 6.4 crank and a 6.4 short block?
Short block 68086564AB orRL086564AB
Crankshaft 5038339A
The 6.4 crankshaft is forged, correct?
Does anybody know if the 6.4 crank has the same oiling issues as a 5.7 crank does? Wondering if it is a good alternative to aftermarket forged crank for a stroker 5.7 motor.
AFAIK the oiling is the same.
The crank is forged. Matt
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Re: please share your gen 3 Hemi build
[Re: STEFF]
#1675096
10/18/14 04:12 PM
10/18/14 04:12 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:
Just curious why anyone wants to run a stock crank when the aftermarket cranks are a better piece and not that much more expensive...
But I bought mine for half the price that they are now.
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Re: please share your gen 3 Hemi build
[Re: MattW]
#1675097
10/18/14 05:00 PM
10/18/14 05:00 PM
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Joined: May 2005
Posts: 723
Houston Tx
Uhcoog1
super stock
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super stock
Joined: May 2005
Posts: 723
Houston Tx
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I think the idea that the cranks are causing oiling issues is mostly BS.
Stanton Racing (drag pak builder) told me the drag pak cars need 11.5 quarts between the pan and accusump. And there are at least a half dozen guys running stock 6.1 cranks shifting at 8200-8600 rpm and all have been fine for 2+ years.
Also- for those planning builds- the VVT motor cranks require machining if you want to run them in a non-VVT motor.
-'02 Dodge Viper Ex-World Challenge racecar
-'73 Duster, 6.1 based 392 hilborn hemi, tko600, full floater rear 9", Hellwig custom bars, viper brakes, built for road course
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Re: please share your gen 3 Hemi build
[Re: Uhcoog1]
#1675098
10/18/14 06:24 PM
10/18/14 06:24 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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What makes a VVT crank different from a non VVT?
What machining steps are required?
69 Dart
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Re: please share your gen 3 Hemi build
[Re: STEFF]
#1675099
10/18/14 06:31 PM
10/18/14 06:31 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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Quote:
Just curious why anyone wants to run a stock crank when the aftermarket cranks are a better piece and not that much more expensive...
I agree 100% with you Stef as the Molnar stuff is only like $100 more...But you never know when you might catch a good deal on a 6.4 crank, and I just thought I would ask since I was unsure if the oiling issues was restricted to 5.7s only, or also 6.1's and 6.4's also.
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Re: please share your gen 3 Hemi build
[Re: onig]
#1675100
10/18/14 07:05 PM
10/18/14 07:05 PM
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Joined: Jan 2003
Posts: 3,872
Smyrna, South Carolina
STEFF
master
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master
Joined: Jan 2003
Posts: 3,872
Smyrna, South Carolina
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Quote:
What makes a VVT crank different from a non VVT?
What machining steps are required?
Timing gear is positioned further forward on the VVT crank. Would need to machine the crank snout to work in non VVT motor.
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Re: please share your gen 3 Hemi build
[Re: onig]
#1675101
10/18/14 07:14 PM
10/18/14 07:14 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 makes a VVT crank different from a non VVT?
What machining steps are required?
Lets see if I can explain this correctly.
The VVT crank needs the snout where the crank timing gear rest against to be machined so the gear sits in the same factory location on an NON VVT block.
Simple process.
The cam in a VVT block is longer.
Steff posted some pics when he built his 6.4.
Matt
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Re: please share your gen 3 Hemi build
[Re: 72Swinger]
#1675102
10/18/14 09:07 PM
10/18/14 09:07 PM
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Joined: Sep 2006
Posts: 411
Portersville, Pa
1badx
mopar
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mopar
Joined: Sep 2006
Posts: 411
Portersville, Pa
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Quote:
Mike at that boost level what valvesprings and lifter setup are you using?
Stock 6.1 lifters and whatever springs PWR recommended for the cam.
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Re: please share your gen 3 Hemi build
[Re: MattW]
#1675103
10/18/14 09:14 PM
10/18/14 09:14 PM
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Joined: Sep 2006
Posts: 411
Portersville, Pa
1badx
mopar
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mopar
Joined: Sep 2006
Posts: 411
Portersville, Pa
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Quote:
Quote:
Just curious why anyone wants to run a stock crank when the aftermarket cranks are a better piece and not that much more expensive...
Stock 6.1 cranks generally go for about $150, are forged and can easily handle most power needs. Buy a set of good rods, pistons and studs and you will have a stout combo. On the flip side the price for aftermarket rotating assemblies is very affordable.
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Re: please share your gen 3 Hemi build
[Re: onig]
#1675106
10/19/14 11:07 AM
10/19/14 11:07 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:
Quote:
Quote:
What makes a VVT crank different from a non VVT?
What machining steps are required?
Timing gear is positioned further forward on the VVT crank. Would need to machine the crank snout to work in non VVT motor.
Does this also apply to 5.7 and 6.1?
No.
The only ones affected were the 6.4 and the 5.7 eagle head motors. 09 and up for the 5.7.
I think the 6.4 came out in 2011.
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Re: please share your gen 3 Hemi build
[Re: MattW]
#1675107
10/19/14 11:15 AM
10/19/14 11:15 AM
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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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6.1 engines did not come with VVT?
69 Dart
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