[Fastback GT]

I'm building a 393 stroker, it's a 74 block and I want to run a passenger side inlet water pump.
Has anyone run into this or know if using a timing cover for a passenger side inlet water pump will do the trick. I have heard that the water pump's are different lengths. which will mess up the belt alignment. I have seen this done but the guy did not know how it was done, he had bought it like that.........

[Horseshoeing]

Don't had a clue, but could you goto the parts store and have them get both water pumps out and look at them side by side and tell?

[Grimmy]

That issue was talked about in a book i just bought, I will go back to that section tonight and let you know tomorrow.

[Fastback GT]

Thank you !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[Grimmy]

no problem i just have to write myself a note. my memory is horrible.

[Fastback GT]

All good !!!! The name of the book would work.?.

[Grimmy]

S#!t, I'm sorry. Im going to have to go back and look again. I was looking for the 302 not the 351.

let me tell you what I did read.

He typically lumps the engines together and doesn't give specifics to just one engine. The only clearance problem listed was if you have a dual roller timing set your oil slinger won't clear the chain. as for one water pump being larger than the other I don't believe so. the pics all looked to be the same height, but you know how pics are. I'm pretty sure he would have mentioned something if they were though, as he mentioned the 1994+ were considerably smaller pumps. You might have to buy a new harmonic balancer if you do this, I will double check that for you. But I do believe that the marks will not line up with the older cover.

the name of the book is How to Rebuild the Small-Block Ford:
From Tear-Down to Break-In written by George Reid.
http://www.themotorbookstore.com/reb...lock-ford.html

[1slo5.0]

Originally Posted by Fastback GT I'm building a 393 stroker, it's a 74 block and I want to run a passenger side inlet water pump. Has anyone run into this or know if using a timing cover for a passenger side inlet water pump will do the trick. I have heard that the water pump's are different lengths. which will mess up the belt alignment. I have seen this done but the guy did not know how it was done, he had bought it like that.........

I've done this on two different cars and never had a problem with length. I think the only difference is the inlet side. I am pretty sure all other dimensions are the same.

289-351W pumps are the same with the exception of the serpentine reverse rotation pumps.

[Fastback GT]

Thanks !!!!! I'm going to line up some pumps and timing chain covers and see what I can.

[Grimmy]

Oh man. You couldn't have said that to him in a PM? Here I was feeling usefull around here, which doesn't happen often, and you had to go and take that away from me. I guess I'll just have to wait for another blue moon. lol.

[Fastback GT]

No No No
That was for both of ya.
Thanks !!!!!!!!!!!!

[Grimmy]

Oh, I know I was just messing around.

I forgot to check on the harmonic balancer for you last night. I'll have to write myself another note.

btw why do you want to go with the left hand inlet waterpump.?

[Fastback GT]

I'm running a 289 now and have the chrome hoses, afco aluminum radiator and a Gilmore belt drive for a standard rotation W Pump....

[Grimmy]

you might need a new harmonic balancer then, if I recall correctly your 289 has a 28 oz counter weight and your 351 takes a 50 oz weight. I'll look it up and get back to you.

[Fastback GT]

Rotating assembly has been balanced with a 28 oz dampener 4 bolt

[latamud]

50 oz was on 5.0 engines and started around 86.

You want a pre 70 style water pump to get the inlet on the passenger side and keep the normal rotation pulley. Get a pump for a 64-69 Mustang with a 289 and it will mate up to your 351w timing cover.
I did the opposite in my car, I went from a passenger inlet to a driver inlet pump so I could run an aluminum crossflow radiator. I bought a high flow Edelbrock Victor Jr pump for a 1970 Mustang. I recommend a high flow water pump for any engine, it will help keep your engine cool.