How to tell if waterpump is long or short

[wakedog]

How do i tell if i have a short or long shaft water pump?? I have a crate 350. Thanks

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[reddog64]

If it huggs the block like within 1 to 1.5 inches it's short...
I believe...

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[wakedog]

Thanks

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[Neil]

correct..more like 3/4inch actually

Neil H. Alabama.. "It's a full size thang, Jeep owners don't understand!!" '78 K5 400ci 4x4 AT,AC,PW Cheyenne., '74 C10 4x2

 

[Blazer1970]

On a short pump, the back cover of the water pump is almost touching the timing cover - within about 1/8". If you can put a finger in the gap it is a long pump. Any crate motor is going to come with a long pump.

Tim

70 Blazer CST 4X4 350 SM465 NP205
87 Burb 4X4 350
01 GMC 2500HD 4X4 Duramax/Allison