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Re: Main bearing spacers [Re: JesseR] #2413271
12/04/17 09:55 PM
12/04/17 09:55 PM
Joined: Jan 2005
Posts: 3,629
Oakland, MI
D
dizuster Offline
master
dizuster  Offline
master
D

Joined: Jan 2005
Posts: 3,629
Oakland, MI
I wouldn't worry about if it would work. But why bother? By the time you get them made/machined, you could just buy the right crank and be done with it.

Re: Main bearing spacers [Re: dizuster] #2413276
12/04/17 10:03 PM
12/04/17 10:03 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
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Joined: Jun 2003
Posts: 52,972
Romeo MI
If I remember right MP use to sell them about
25 years ago.. I knew 1 guy the used them.. it
worked out fine for his street engine.. this
was on a SB.. but I havent heard of them in
a LONG time
wave

Re: Main bearing spacers [Re: MR_P_BODY] #2413303
12/04/17 10:55 PM
12/04/17 10:55 PM
Joined: Apr 2004
Posts: 428
Mountain City, TN
J
JesseR Offline OP
mopar
JesseR  Offline OP
mopar
J

Joined: Apr 2004
Posts: 428
Mountain City, TN
I appreciate all the responses about this. Fact is, I wanted to know if it’s been done, simple question. Will I do it, probably not at this point, just wanted some input on the subject.


82' dodge pickup with a 499 low deck
Re: Main bearing spacers [Re: JesseR] #2413315
12/04/17 11:25 PM
12/04/17 11:25 PM
Joined: Oct 2007
Posts: 4,205
New York
polyspheric Offline
master
polyspheric  Offline
master

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Posts: 4,205
New York
Back in the day, the original bearing was the spacer.


Boffin Emeritus
Re: Main bearing spacers [Re: JesseR] #2413377
12/05/17 01:31 AM
12/05/17 01:31 AM
Joined: Jan 2007
Posts: 774
Midland,Tx
wyldebill Offline
super stock
wyldebill  Offline
super stock

Joined: Jan 2007
Posts: 774
Midland,Tx
If they were available I'd probably buy a set. I have access to a billet center weighted 400 mained 4.300 crank.

Re: Main bearing spacers [Re: polyspheric] #2413391
12/05/17 01:55 AM
12/05/17 01:55 AM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
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Joined: Aug 2003
Posts: 43,007
Bend,OR USA
Me thinks your talking about the beginning of times in American made cars whistling work


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Main bearing spacers [Re: JesseR] #2413400
12/05/17 02:09 AM
12/05/17 02:09 AM
Joined: Oct 2007
Posts: 4,205
New York
polyspheric Offline
master
polyspheric  Offline
master

Joined: Oct 2007
Posts: 4,205
New York
Bill Jenkins 1973


Boffin Emeritus
Re: Main bearing spacers [Re: polyspheric] #2413403
12/05/17 02:11 AM
12/05/17 02:11 AM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
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Joined: Aug 2003
Posts: 43,007
Bend,OR USA
I thought you where talking about the full floating rod bearings back a long time ago that I have heard of, never seen one myself either confused


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Main bearing spacers [Re: Cab_Burge] #2413446
12/05/17 03:18 AM
12/05/17 03:18 AM
Joined: Sep 2014
Posts: 4,457
Washington
M
madscientist Offline
master
madscientist  Offline
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Joined: Sep 2014
Posts: 4,457
Washington
Originally Posted By Cab_Burge
I thought you where talking about the full floating rod bearings back a long time ago that I have heard of, never seen one myself either confused



Flat head ford stuff.


Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
Re: Main bearing spacers [Re: Cab_Burge] #2413493
12/05/17 11:08 AM
12/05/17 11:08 AM
Joined: Jan 2007
Posts: 1,444
NEW JERSEY
D
dynamite Offline
pro stock
dynamite  Offline
pro stock
D

Joined: Jan 2007
Posts: 1,444
NEW JERSEY
I only used them in the smallblock Chevy in my offshore boat ,,but that was years ago...Never had a problem..even at high RPM WOT for over an hour at a time..( in flat water) ..or jammin from full throttle no throttle and right back on to WOT ..in big water..

2013-02-28 09.57.52.jpg
Re: Main bearing spacers [Re: JesseR] #2413581
12/05/17 02:44 PM
12/05/17 02:44 PM
Joined: Jan 2004
Posts: 8,192
fredericksburg,va
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cudaman1969 Offline
master
cudaman1969  Offline
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C

Joined: Jan 2004
Posts: 8,192
fredericksburg,va
Why stop at that size, go smaller, after all, smaller journals make more HP. It's not some voodoo thing.

Re: Main bearing spacers [Re: cudaman1969] #2413583
12/05/17 02:49 PM
12/05/17 02:49 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,007
Bend,OR USA
Originally Posted By cudaman1969
Why stop at that size, go smaller, after all, smaller journals make more HP. It's not some voodoo thing.

Size matters, especially when it comes to twisting and reversing metal repeatedly work

Last edited by Cab_Burge; 12/05/17 02:50 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Main bearing spacers [Re: Cab_Burge] #2413645
12/05/17 04:41 PM
12/05/17 04:41 PM
Joined: Jan 2004
Posts: 8,192
fredericksburg,va
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cudaman1969 Offline
master
cudaman1969  Offline
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C

Joined: Jan 2004
Posts: 8,192
fredericksburg,va
Originally Posted By Cab_Burge
Originally Posted By cudaman1969
Why stop at that size, go smaller, after all, smaller journals make more HP. It's not some voodoo thing.

Size matters, especially when it comes to twisting and reversing metal repeatedly work

You mean like Johnsons rubber cranks Line was complaining about?
Speek get of cranks, go to the general forums and look at the Cummins engine dyno explosion. Had a good one in it, for awhile!

Last edited by cudaman1969; 12/05/17 04:44 PM.
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