sbc short vs. long water pump - Great Lakes 4x4. The largest offroad forum in the Midwest

JUSS10 · June 4th, 2006, 06:09 AM

ok well in my newest cj project i droping a chevy 350 in it (the engine it had when i bought it) and was wondering even though it had a long water pump to begin with can i replace the long one with a short one? or will that screw up the mounting on my power steering and alternator? can i just put a shorter pully on the short water pump to make everything thing fit again? thanks

kevinr839 · June 4th, 2006, 06:14 AM

If you change the pump you have to change the pulley on the crankshaft and waterpump and the brackets for the alt and p/s. Usually the bracket for the altenator on a short w/p puts it on the drivers side and puts it farther away from the motor.

MuddyPaws · June 4th, 2006, 07:34 AM

Quote:

Originally Posted by kevinr839

If you change the pump you have to change the pulley on the crankshaft and waterpump and the brackets for the alt and p/s. Usually the bracket for the altenator on a short w/p puts it on the drivers side and puts it farther away from the motor.

x2...I kept the long with my 383.

BigBlkYJ 355 · June 5th, 2006, 05:03 PM

used a long water pump here also, but i went electric fans. there is not much clearance to be spared with my setup.

JUSS10 · June 5th, 2006, 08:27 PM

thats why i was wondering if its easy to just put on a shorty because if clearance of an electric fan on the radiator. BigBlkYJ do you have HEI ignition or just a regular distributer? im facing clearance issues with trying to fit my HEI and a larger electric fan.

BigBlkYJ 355 · June 5th, 2006, 09:14 PM

i have an HEI and about 2" yet from that to the firewall. the fans are pretty close to the water pump pulley, but it all depends on the pulley setup you use also. ill take some pics tomorrow if i get a chance, and ill look around the PC to see if i have any.

JUSS10 · June 5th, 2006, 09:25 PM

hey thanks that will help alot. im dealing with a cj. i dont know if that changes much but pictures would be a great help.

MuddyPaws · June 5th, 2006, 09:55 PM

I'm running the small cap dist and dual elect fans. The water pump pully sorta fits in between the fans.

BigBlkYJ 355 · June 5th, 2006, 10:16 PM

sorry for the huge pic, but its the most detailed one i found on the computer.....

June 4th, 2006, 06:09 AM	#1
JUSS10 4given4x4.com Join Date: 04-09-06 Location: Zeeland, MI Posts: 500 iTrader: (4)	sbc short vs. long water pump ok well in my newest cj project i droping a chevy 350 in it (the engine it had when i bought it) and was wondering even though it had a long water pump to begin with can i replace the long one with a short one? or will that screw up the mounting on my power steering and alternator? can i just put a shorter pully on the short water pump to make everything thing fit again? thanks

June 4th, 2006, 06:14 AM	#2
kevinr839 Senior Member Join Date: 03-19-06 Location: petersburg, MI Posts: 818 iTrader: (3)	If you change the pump you have to change the pulley on the crankshaft and waterpump and the brackets for the alt and p/s. Usually the bracket for the altenator on a short w/p puts it on the drivers side and puts it farther away from the motor.

June 5th, 2006, 05:03 PM	#4
BigBlkYJ 355 U-Joints Fear Me Join Date: 11-05-05 Location: Clawson Posts: 3,360 iTrader: (4)	used a long water pump here also, but i went electric fans. there is not much clearance to be spared with my setup.

June 5th, 2006, 08:27 PM	#5
JUSS10 4given4x4.com Join Date: 04-09-06 Location: Zeeland, MI Posts: 500 iTrader: (4)	thats why i was wondering if its easy to just put on a shorty because if clearance of an electric fan on the radiator. BigBlkYJ do you have HEI ignition or just a regular distributer? im facing clearance issues with trying to fit my HEI and a larger electric fan.

June 5th, 2006, 09:14 PM	#6
BigBlkYJ 355 U-Joints Fear Me Join Date: 11-05-05 Location: Clawson Posts: 3,360 iTrader: (4)	i have an HEI and about 2" yet from that to the firewall. the fans are pretty close to the water pump pulley, but it all depends on the pulley setup you use also. ill take some pics tomorrow if i get a chance, and ill look around the PC to see if i have any.

June 5th, 2006, 09:25 PM	#7
JUSS10 4given4x4.com Join Date: 04-09-06 Location: Zeeland, MI Posts: 500 iTrader: (4)	hey thanks that will help alot. im dealing with a cj. i dont know if that changes much but pictures would be a great help.

June 5th, 2006, 09:55 PM	#8
MuddyPaws Boink Join Date: 11-05-05 Location: Sault Sainte Marie Posts: 10,989 iTrader: (12)	I'm running the small cap dist and dual elect fans. The water pump pully sorta fits in between the fans.

June 5th, 2006, 10:16 PM	#9
BigBlkYJ 355 U-Joints Fear Me Join Date: 11-05-05 Location: Clawson Posts: 3,360 iTrader: (4)	sorry for the huge pic, but its the most detailed one i found on the computer.....