Originally Long or Short Water Pump? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

DHregdovic · 07-05-2002, 12:09 PM

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...

Longhorn Man · 07-05-2002, 12:29 PM

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.

mikep · 07-05-2002, 02:02 PM

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.

*Fast68Chevy* · 07-06-2002, 05:57 PM

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 ???

tom hand · 07-06-2002, 06:12 PM

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.

Ed ke6bnl · 07-08-2002, 07:32 AM

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

6869704X4 · 07-08-2002, 11:16 AM

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.

**Desert Rat** · 07-08-2002, 01:40 PM

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

07-05-2002, 12:09 PM	#1
DHregdovic Registered User Join Date: Jan 2002 Location: Beaver County, PA Posts: 46	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... __________________ 67 LWB GMC 250 inline w/4spd manual Disc/power brake conversion

07-05-2002, 02:02 PM	#3
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	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. __________________ No truck :-(

07-06-2002, 06:12 PM	#5
tom hand CCRider Join Date: Feb 2000 Location: Olive Branch,MS,USA Posts: 2,232	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. __________________ 72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS

07-08-2002, 07:32 AM	#6
Ed ke6bnl Registered User Join Date: Mar 2002 Location: Agua Dulce, Ca. usa Posts: 179	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 __________________ 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

07-08-2002, 11:16 AM	#7
6869704X4 Registered User Join Date: Jul 2002 Location: SE NM Posts: 769	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. __________________ The more I learn about women, the more I love my truck.

07-05-2002, 12:29 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	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.

07-06-2002, 05:57 PM	#4
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	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 ???

07-08-2002, 01:40 PM	#8
Desert Rat Senior Member Join Date: Dec 1999 Location: Darrington, Washington Posts: 3,963	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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