Re: ? about 440 crank in low deck
[Re: mac56]
#608093
02/08/10 07:32 PM
02/08/10 07:32 PM
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Joined: Feb 2003
Posts: 12,675 Columbia, CT
moper
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I Live Here
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Columbia, CT
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The diameter of the counterweights is different. the exact number I don't recall... But it ends up being close to .200" off it. I have also used them with no clearance issues. So "your results may vary"...lol Personally I won't use a factory crank anymore when there are cheap alternatives for a better peice that drops in. To have a factory one magged, stroke corrected, indexed, and ground/polished is $400. A 440Source B wedge main/counterweight crank is $600 or so for a new part that is much stronger.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: ? about 440 crank in low deck
[Re: CRE2004]
#608101
02/09/10 06:47 AM
02/09/10 06:47 AM
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Joined: Oct 2005
Posts: 976 ontario canada
mac56
OP
super stock
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OP
super stock
Joined: Oct 2005
Posts: 976
ontario canada
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Quote:
Here's what it looks like after you run the CNC through it to remove that annoying area and radius it....
Nice work, but then you have a reputation for nice work. Was this done so the counter weight didn't have to be cut or were there other facts?
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Re: ? about 440 crank in low deck
[Re: mac56]
#608102
02/09/10 08:43 AM
02/09/10 08:43 AM
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Joined: Feb 2003
Posts: 12,675 Columbia, CT
moper
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I Live Here
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Posts: 12,675
Columbia, CT
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I had a stock RB crank that dropped in with a minor amount of clearancing where Jim noted in the picture. This is why I say some do fit...
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: ? about 440 crank in low deck
[Re: StealthWedge67]
#608104
02/09/10 11:36 AM
02/09/10 11:36 AM
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Joined: Feb 2004
Posts: 3,441 Mo.
supercomp
master
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master
Joined: Feb 2004
Posts: 3,441
Mo.
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Quote:
but even if it fits, what sort of swiss cheese does it look like after balancing it?? The counterweights are not only too large, they're too heavy for the 451 / 470 combo. Cutting them down helps both issues, probobly also helps reduce windage. Just seems like the right way to do it.??
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Re: ? about 440 crank in low deck
[Re: supercomp]
#608105
02/09/10 12:31 PM
02/09/10 12:31 PM
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Joined: Feb 2003
Posts: 12,675 Columbia, CT
moper
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 12,675
Columbia, CT
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I used H-beams and J&Es with the one that dropped it. The rods were not light but the crank still had a few 1" holes in it. Not that I consider that a big deal. But it did make for a bit of work when balancing it.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: ? about 440 crank in low deck
[Re: mac56]
#608109
02/09/10 07:34 PM
02/09/10 07:34 PM
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Joined: Jan 2003
Posts: 31,049 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,049
Oregon
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Quote:
So then there is no trick to cutting the counter weights is there? Just put in a big a$$ lathe.
There are several tricks to cutting down the counterweights. First off you need to know what dimension to cut it to. Then you need the right fixture to bolt to the crank flange so the lathe can hold the crank. It also works better if you have the right tool to center the nose of the crank. And the last trick is to have the correct type of cutting tool.
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Re: ? about 440 crank in low deck
[Re: CRE2004]
#608111
02/09/10 08:38 PM
02/09/10 08:38 PM
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Joined: Jan 2003
Posts: 16,928 NC
440Jim
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Quote:
Here's what it looks like after you run the CNC through it to remove that annoying area and radius it....
That is nice looking.
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