Which later model water pump pulley?

[Stevehose]

I am going to run my PS pump off the crank hub with the hub pulley from a later engine so I won't need the stock water pump double pulley which also ran the PS pump and alternator. Which later one is preferable, I see two:

Pulley 130mm 11511706781
Pulley 144mm 11511271423

Would the 144 be better because it would make the water pump spin faster?

 

[sfdon]

UMMMM...
Not only does the smaller pulley spin your pump faster- it is desirable because it keeps your pulley from contacting your lower radiator hose at the top.

 

[Stevehose]

UMMMM...
Not only does the smaller pulley spin your pump faster- it is desirable because it keeps your pulley from contacting your lower radiator hose at the top.

Right, i mixed that up thanks.

 

[coupedegrace]

I use bicycle gearing as a mnemonic. Large cog on drive axle = easy/slow; small cog = hard/fast.

 

[Stevehose]

UMMMM...
Not only does the smaller pulley spin your pump faster- it is desirable because it keeps your pulley from contacting your lower radiator hose at the top.

How about a 102mm one? It seems to fit on the water pump. Too much gearing or even better low speed flow? I have a 130mm on the way also.