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Aluminum Blocks and 440 Source Cranks
#2901695
03/22/21 04:48 PM
03/22/21 04:48 PM
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Joined: Jan 2003
Posts: 4,084
Indiana
W5Duster436
OP
master
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OP
master
Joined: Jan 2003
Posts: 4,084
Indiana
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All,
Been an awfully LONG time since i've been on here but was chatting with a friend who's adamant he needs to run a 6k dollar aluminum block on the street and wanted to get some feedback from the guru's on this as maybe i'm completely off-base on this nowadays and gave him bad information. The other issue is he wants to run a 440 Source crank and also wondered what the general concensus is on those these days. I can recall years ago that their reputation was less than stellar. I guess my feeling is that if I'm hell bent on running a 6k aluminum block on the street, I'm going to run Callies, Kellogg etc. Am i completely off base here? :-)
'70 Duster - SDSS 436 W5 4spd (Gone)
'71 Dodge D100
'70 Dodge W100
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Re: Aluminum Blocks and 440 Source Cranks
[Re: Stanton]
#2901760
03/22/21 07:54 PM
03/22/21 07:54 PM
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Joined: Oct 2007
Posts: 4,206
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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What makes a China hater:
1. has a job
2. pays taxes
3. does not get his political views from CNN
Boffin Emeritus
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Re: Aluminum Blocks and 440 Source Cranks
[Re: polyspheric]
#2901802
03/22/21 09:19 PM
03/22/21 09:19 PM
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Joined: Mar 2005
Posts: 3,022
NY
B1duster
master
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master
Joined: Mar 2005
Posts: 3,022
NY
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What makes a China hater:
1. has a job
2. pays taxes
3. does not get his political views from CNN I’m with you !
Last edited by B1duster; 03/22/21 09:34 PM.
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Re: Aluminum Blocks and 440 Source Cranks
[Re: FastmOp]
#2901831
03/22/21 11:09 PM
03/22/21 11:09 PM
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Joined: Mar 2003
Posts: 2,507
PA
moparacer
master
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master
Joined: Mar 2003
Posts: 2,507
PA
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Tell your buddy he should at a minimum be using Molnar
crank and rods in his $6k block. Only a couple hundred bucks
more, nicer stuff and better resale... This....Everyday and twice on Sundays!
Last edited by moparacer; 03/22/21 11:10 PM.
67 Barracuda street/bracket car 11.27-119
68 Dart 502 BB 8.70s-152
414 cid SB Dragster 7.65-174
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Re: Aluminum Blocks and 440 Source Cranks
[Re: Stanton]
#2901834
03/22/21 11:15 PM
03/22/21 11:15 PM
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Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
tubtar
master
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master
Joined: Nov 2009
Posts: 3,082
St. Paul , Mn.
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Most of the bad rap is from China haters who continuously overexaggerate a minor issue. However, I can't help wonder why you'd want to put a budget crank in a premium block !!! Crankshafts are a minor issue. Funding the second largest blue water Navy is another matter entirely. I honestly think that we are buying the rope to hang ourselves. And I don't have money falling out of every orifice by any means. I do get saving a few bucks where it makes sense. This doesn't make any sense at all.
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Re: Aluminum Blocks and 440 Source Cranks
[Re: W5Duster436]
#2901837
03/22/21 11:19 PM
03/22/21 11:19 PM
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Joined: Jan 2003
Posts: 4,395
The Pale Blue Dot
Skeptic
master
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master
Joined: Jan 2003
Posts: 4,395
The Pale Blue Dot
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All,
Been an awfully LONG time since i've been on here but was chatting with a friend who's adamant he needs to run a 6k dollar aluminum block on the street and wanted to get some feedback from the guru's on this as maybe i'm completely off-base on this nowadays and gave him bad information. The other issue is he wants to run a 440 Source crank and also wondered what the general concensus is on those these days. I can recall years ago that their reputation was less than stellar. I guess my feeling is that if I'm hell bent on running a 6k aluminum block on the street, I'm going to run Callies, Kellogg etc. Am i completely off base here? :-) If he wants to spend 6 large for a block and fill it with 440 Source parts, [censored] it, it's his money  All of it should be sent to a reliable machine shop to be checked and corrected as necessary.
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Re: Aluminum Blocks and 440 Source Cranks
[Re: Skeptic]
#2901860
03/23/21 01:21 AM
03/23/21 01:21 AM
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Joined: Jan 2003
Posts: 10,006
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,006
Frostbitefalls MN (Rocky&Bullw...
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All the crank has to do is match the stress level it will live with. Its a long stretch from a small port torque build to B1 heads and 8000 rpm. Or a blown app.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Aluminum Blocks and 440 Source Cranks
[Re: gregsdart]
#2901875
03/23/21 06:07 AM
03/23/21 06:07 AM
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Joined: Jan 2003
Posts: 5,762
Hot Rod Ridge
FastmOp
master
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master
Joined: Jan 2003
Posts: 5,762
Hot Rod Ridge
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I been 162MPH in the 1/8 with this exact combo ha ha ha ha. Turn it 7500 every pass.
Save your $$$$ for rods and pistons.
I need some sponsorship from 440Source lol
Last edited by FastmOp; 03/23/21 06:09 AM.
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Re: Aluminum Blocks and 440 Source Cranks
[Re: FastmOp]
#2901881
03/23/21 07:28 AM
03/23/21 07:28 AM
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Joined: Dec 2005
Posts: 1,495
Shelby mi.
JAKE68
pro stock
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pro stock
Joined: Dec 2005
Posts: 1,495
Shelby mi.
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Having used quite a few 440 source cranks I have never had any failures making up to over 800 hp in a few.
The problem is the machining. having to send them out to get skinned to get bearing clearances corrected and snout clearanced so dampner had correct press fit is the issue. so you take what you spend to fix you could buy a better machined crank . Never had any issues with a molnar.
JAKES AUTOMOTIVE
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Re: Aluminum Blocks and 440 Source Cranks
[Re: B1duster]
#2902009
03/23/21 12:29 PM
03/23/21 12:29 PM
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Joined: Jan 2003
Posts: 16,928
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,928
NC
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Tell your buddy he should at a minimum be using Molnar
crank and rods in his $6k block. Only a couple hundred bucks
more, nicer stuff and better resale That is what I was thinking. I am fine with 440source stuff in a mild street build on a budget. Or even a 650 hp bracket motor...
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Re: Aluminum Blocks and 440 Source Cranks
[Re: JAKE68]
#2902013
03/23/21 12:34 PM
03/23/21 12:34 PM
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Joined: Jan 2003
Posts: 16,928
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,928
NC
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Having used quite a few 440 source cranks I have never had any failures making up to over 800 hp in a few.
The problem is the machining. having to send them out to get skinned to get bearing clearances corrected and snout clearanced so dampner had correct press fit is the issue. so you take what you spend to fix you could buy a better machined crank . Never had any issues with a molnar. Yup, about the same cost after paying for "adjustments"
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Re: Aluminum Blocks and 440 Source Cranks
[Re: merpar]
#2902039
03/23/21 01:38 PM
03/23/21 01:38 PM
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Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
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Molnar cranks, Eagle, Scat, and several others are ALL from China. And I would guess from the same supplier. So just take your pick.  From the one's I've seen, the finish machining differs from brand to brand, even though they are all very similar (same?) forgings from overseas. I've done engines w/ Scat, Callies cheaper line Comp Star series, K1, and Molnar products and they needed nothing but balancing to be used. Eagle, on the other hand, needs some machining before being installed. I've never used any of 440 source's bottom end components. I feel better buying something new that doesn't need to be "rebuilt" first.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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