914 Water pump, Yes a SBC Options

[drive-ability]

I'm replacing my Renegade/Chrysler BB pump, since it locked up last night. I didn't here any noise at all ? The engine does make a bit of noise but you would think there would be some warning. Nope ! Maybe something broke off and jammed up the impeller etc. The pump just locked up and melted the drive belt.
My question is I have been running a standard pump and decided to get a high volume unit. My assumption is the quality is better than my last one and with A/C it might perform better moving more water. I guess with more pressure comes it own set of issues. One thought is the belt was too tight, and that's a good bet.
I'm not running a Thermostat but am running a minor restriction in the thermostat housing, which I think I should remove.. ?

Any one have any input here. (IMG:style_emoticons/default/type.gif)

[drive-ability]

I thought I would share to the V8 guys what I ended up doing. I used the standard pulley, shelved the smaller one for now. I ordered a pump via ebay that has a cast impeller which states it moves 30% more water.
When I got the pump I found it wouldn't fit in the Renegade housing, so I spent a few hours porting the housing to accommodate the pump. I took time to grind out only what was needed for a tight fit. There was some shaping involved to accommodate the larger oval shaped impeller. I got it to spin free without the gasket installed, then boiled and froze the unit to make sure its not going to hit during expansion or contraction. I used clay as well to guide the porting process.

I've had the pump in operation for 2 days and the overall cooling system is working much better than the 8 paddle stamped steel unit. I installed a pressure gauge because at 3k I could feel the coolant hose expand a bit. The pressures are moving between 5 and 14 psi, that works for me. There's no dough this pump moves more water and thus cools better.
I am going to set up the smaller pulley in a week or so and see how the system responds to the different ratio.