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07-05-2002, 12:09 PM
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#1 |
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Registered User
Join Date: Jan 2002
Location: Beaver County, PA
Posts: 46
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Originally Long or Short Water Pump?
Did the 67-72's come with a long nose water pump or short? Is there a difference in 2 or 4 wheel drive?
I'm yanking the old 6-250 and dropping in a SBC in front of the 4-speed. The 350 I'm putting in has a short one on it and I need to get all other accessory mounting (alt, pwr steer). I was going to go to the boneyard and find a donor SBC but though you guys could give some insight as to what I should look for to achieve ease of installation. I was thinking if I were to put it in the 6-250 mounting location and got a 4x4 shroud - would I want long or short. I'm open to other ideas/suggestions. I'm not really worried about stock but rather fit/function...
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67 LWB GMC 250 inline w/4spd manual Disc/power brake conversion |
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07-05-2002, 12:29 PM
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#2 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Originally, they came with short pumps. However, I believe it's been said on here that if you install in the inline position, the long pump works and tucks the fan into the shroud.
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07-05-2002, 02:02 PM
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#3 |
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Used to have a truck
Join Date: May 2002
Location: port orchard WA
Posts: 1,552
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I use a long pump with big block engine mounts and a big block shroud. Everything fits like a glove. I dont know if the 6 cylinder mounts put the transmission in the same place though.
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No truck :-( |
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07-06-2002, 05:57 PM
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#4 |
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Account Suspended
Join Date: May 2000
Location: IL
Posts: 0
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are more holes in frame rails for tranny to move forward too, there are more holes for any combination basically,
mikep, how'd you get 3.73 dana 60 under that 68 C20 ??? |
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07-06-2002, 06:12 PM
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#5 |
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CCRider
Join Date: Feb 2000
Location: Olive Branch,MS,USA
Posts: 2,232
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If you put a v-8 in the 6 posistion, the short pump will work with the 4x4 fan shroud and the long pump will work with the 2x4 shroud. Good luck.
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72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS |
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07-08-2002, 07:32 AM
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#6 |
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Registered User
Join Date: Mar 2002
Location: Agua Dulce, Ca. usa
Posts: 179
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long and short of it the water pump
If I were to change out the water pump from short to long to help get the fan closer to the fan shroud will I need to do something with the pulleys and there alignmen???? Thanks Ed ke6bnl
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Ed ke6bnl Agua Dulce 70 S.E. Los Angeles 70 Chevy short bed 1948 F3 ford pu 1949 F1 stock V8 flathead 3 on floor 1950 F1 pu street rod 1948 F6 Ford Dually/350sbc no bed stock trans&rear 1972 El Camino 4" chop 1953 Chevy 3100 2b daily driver 1970 SB 4X4 400ci 6in lift |
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07-08-2002, 11:16 AM
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#7 |
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Registered User
Join Date: Jul 2002
Location: SE NM
Posts: 769
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If you get lucky at the bone yard(unlike me) you might find an engine with all the pulleys and brackets you need. Get everything.
I changed to a long pump because a bolt for the alternator bracket busted off in the head and I couldnt get it out cleanly. Had to splice alternator wires to get to the other side of the motor. Ive got a unique belt setup because I was scrounging stuff here and there. Got a pic if you want. Cant help you with the fan stuff, I went electric.
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The more I learn about women, the more I love my truck. |
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07-08-2002, 01:40 PM
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#8 |
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Senior Member
 
Join Date: Dec 1999
Location: Darrington, Washington
Posts: 3,963
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If you need correct brackets and pulleys for short pump let me know.I also have long pump available.all original no repoduction junk.email me if interested gmcrat427@yahoo.com
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