Big block pulley issues
#1814926
04/29/15 11:04 PM
04/29/15 11:04 PM
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Joined: Jul 2005
Posts: 444
Loma Linda, MO
7812845
OP
mopar
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OP
mopar
Joined: Jul 2005
Posts: 444
Loma Linda, MO
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I've a 68, 383 that I'm trying to just run power steering, alternator and water pump. Years ago I supposedly bought a big block set up for this, but the alternator and power steering pump both set back about 1/2 inch too far. I have seen pictures where the p/s pump bracket bolts up without any spacers from the block, but mine has a 1/4 inch spacer already and it's still too far back. The crank pulley is 3 and 1/4 deep and outside pulley is
7 and 5/16 diameter, small pulley in back is 6 and 1/2 diameter. Any ideas and any pictures of your setup is very much appreciated.
Thanks in advance.
2020 RAM Longhorn 4x4
2022 Jeep Grand Cherokee Overland
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Re: Big block pulley issues
[Re: 7812845]
#1815015
04/30/15 12:20 AM
04/30/15 12:20 AM
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Joined: Jan 2003
Posts: 18,414
UPPER MICHIGAN, MARQUETTE COUN...
NITROUSN
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 18,414
UPPER MICHIGAN, MARQUETTE COUN...
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I've a 68, 383 that I'm trying to just run power steering, alternator and water pump. Years ago I supposedly bought a big block set up for this, but the alternator and power steering pump both set back about 1/2 inch too far. I have seen pictures where the p/s pump bracket bolts up without any spacers from the block, but mine has a 1/4 inch spacer already and it's still too far back. The crank pulley is 3 and 1/4 deep and outside pulley is
7 and 5/16 diameter, small pulley in back is 6 and 1/2 diameter. Any ideas and any pictures of your setup is very much appreciated.
Thanks in advance. Post some pics of what you are trying to use. Sounds like you may be mixed between a/c and non a/c big differences or cast crank v/s steel crank balancer again big differences.
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Re: Big block pulley issues
[Re: NITROUSN]
#1815098
04/30/15 01:40 AM
04/30/15 01:40 AM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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If the water pump and power steering pumps can both be moved forward will they line up with the crank pulley? Can you fab brackets to achieve that? Or will a shallower crank pulley (with the 2 grooves) take care of you? (are the WP/PS pulleys lined up with each other right now)
live every 24 hour block of time like it's your last day on earth
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Re: Big block pulley issues
[Re: 7812845]
#1815384
04/30/15 01:35 PM
04/30/15 01:35 PM
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Joined: Aug 2003
Posts: 43,157
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,157
Bend,OR USA
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Mopar switch pulleys several times in the 1960/70s, all three need to be the same generation and application  IE 1964 to 1968 BB B body with power steering or 1969 to 197? BB B and E body with power steering  Good luck  Let us know what you end up doing to make them work.
Last edited by Cab_Burge; 04/30/15 01:35 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Big block pulley issues
[Re: RapidRobert]
#1815859
04/30/15 10:22 PM
04/30/15 10:22 PM
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Joined: Jul 2005
Posts: 444
Loma Linda, MO
7812845
OP
mopar
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OP
mopar
Joined: Jul 2005
Posts: 444
Loma Linda, MO
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If the water pump and power steering pumps can both be moved forward will they line up with the crank pulley? Can you fab brackets to achieve that? Or will a shallower crank pulley (with the 2 grooves) take care of you? (are the WP/PS pulleys lined up with each other right now) No, they are not in line with each other. The P/S pulley is about 1/2 farther forward. It almost seems like the crank pulley is too far forward (toward the radiator) because both the alt and p/s pump pulleys alignments are further back. I with I could post some pics, but my regular computer gave up the ghost. NUTS!
2020 RAM Longhorn 4x4
2022 Jeep Grand Cherokee Overland
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Re: Big block pulley issues
[Re: 7812845]
#1816022
05/01/15 01:22 AM
05/01/15 01:22 AM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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if you located a shallower crank pulley (of the right offset) would you be able to bring the ps/wp pulleys in line with it?
live every 24 hour block of time like it's your last day on earth
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Re: Big block pulley issues
[Re: RapidRobert]
#1816150
05/01/15 09:48 AM
05/01/15 09:48 AM
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Joined: Jul 2005
Posts: 444
Loma Linda, MO
7812845
OP
mopar
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OP
mopar
Joined: Jul 2005
Posts: 444
Loma Linda, MO
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One of the sponsors of Moparts, 440 Source, has a double pulley for the crank that is supposed to be a direct copy of the original one used on big block engines. I've measured the one I have and the measurements are exactly what theirs is. With it installed, my other two pulleys are still about 1/2 inch still too far back and they already have some spacers not used by others that I've seen.
2020 RAM Longhorn 4x4
2022 Jeep Grand Cherokee Overland
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Re: Big block pulley issues
[Re: 7812845]
#1816585
05/01/15 07:23 PM
05/01/15 07:23 PM
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Joined: Jan 2004
Posts: 9,066
Eugene, Oregon
minivan
master
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master
Joined: Jan 2004
Posts: 9,066
Eugene, Oregon
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I did this dance when I restored the 67 coronet in the pic.. It had the original 440 in it and the lower 2 belt crank pulley had rusted in half..
Can't tell you what year it changed but it was appx 1/4" smaller ( engine to radiator dimension) than any other pulleys I acquired.. Wasn't sure what to do until Randy 1wildRT had the one I needed and sent it to me..
Last edited by minivan; 05/02/15 12:26 AM.
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Re: Big block pulley issues
[Re: skicker]
#1816660
05/01/15 08:56 PM
05/01/15 08:56 PM
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Joined: Jul 2005
Posts: 444
Loma Linda, MO
7812845
OP
mopar
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OP
mopar
Joined: Jul 2005
Posts: 444
Loma Linda, MO
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Thanks for those terrific pictures. After looking at them, I might have the wrong pulley on the p/s pump. Mine is solid, doesn't have the spokes. Something else just dawned on me-I'm running 452 heads that have the "peanut plugs" like on some motor homes and police cars. Don't know if that makes any difference or not???
2020 RAM Longhorn 4x4
2022 Jeep Grand Cherokee Overland
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Re: Big block pulley issues
[Re: 7812845]
#1816806
05/02/15 12:28 AM
05/02/15 12:28 AM
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Joined: Jan 2004
Posts: 9,066
Eugene, Oregon
minivan
master
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master
Joined: Jan 2004
Posts: 9,066
Eugene, Oregon
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Thanks for those terrific pictures. After looking at them, I might have the wrong pulley on the p/s pump. Mine is solid, doesn't have the spokes. Something else just dawned on me-I'm running 452 heads that have the "peanut plugs" like on some motor homes and police cars. Don't know if that makes any difference or not??? 68 should be solid pulley
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Re: Big block pulley issues
[Re: 7812845]
#1816894
05/02/15 03:05 AM
05/02/15 03:05 AM
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Joined: Jun 2005
Posts: 5,102
Western Md.
skicker
"The Champ"
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"The Champ"
Joined: Jun 2005
Posts: 5,102
Western Md.
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Something else just dawned on me-I'm running 452 heads that have the "peanut plugs" like on some motor homes and police cars. Don't know if that makes any difference or not??? I'm not sure what everything I used actually came from as far as year and such. Nothing else on mine is "correct" so it didn't really matter it just needed to work.  The motor in the pic also has 452's...I don't think they make any difference... 
...FAFO...
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