Water Pump

[Johnny]

If ya have a crate engine and ya don't have a water pump or pulleys or anything at all, does it matter if a long water pump or a short water pump is used? I'm leaning toward using an electric fan sp I'm thinking it wouldn't matter.

Let me hear your thoughts.

Thanks

 

[Ted Brown]

The closer to the engine, the less leverage on bearings or bushings, plus the whole assembly is shorter, I think it looks a bit more compact/together... but it is still a personal choice...

 

[Mr. Fixit]

If I recall correctly, the c-c of the ports is the same on both the short and long pumps. The two are only about 1 5/8" different in projection. Either should work fine, but the short would probably be better for clearance purposes. I hope this helps...

 

[Don'tCallMeJimmie]

A short water pump has more aftermarket support for pulleys and mounts. You will have many more choices on that as well as the pump itself.

Go short.

 

[Screaming Metal]

I'm totally with Ted! if you gotta go to the fan, go with a spacer up to 4 inches. If any longer, go with longer pump or move the radiator some....short pumps are best....depends on looks though, and application.

 

[Johnny]

Thanks, fellas. I believe I'll be going short.

 

[Old Rotor Flap]

My choice was the short - it weighs less.

Somewhere in The History of the World Part II, I think I mentioned I bought a high volume aluminum water pump from.... oh, never mind, we'll Skip that.

The pump to block ports of this high volume pump are smaller than a stock pump. I can open up the ports/passages within several minutes with a die grinder. The issue is the claim of being high volume... let's see, the velocity and pressure change can be calculated, but............... why bother.

 

[Keeper]

Find out what alternator mount you will use. That will help determine long/short. As far as I know most of the low alt mounts need the short pump.