Thread: SBC Pulley and belt routing help needed - take a look (pics)

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I need some help with belt routing, and crank and PS pulleys.

I had overheating problems this last summer at low rpm. One of the causes was the underdrive pulleys which was on the engine when I bought it. I now want to put new normal diameter pulleys on. I don't know what "normal" diameters or typical belt routing is though. I did buy a set of pulleys off a buddy (pictures), but they do not line up. I do not want to "wing it" again and still not have it work.

The belt routing I HAD and think would work good now is one belt from crank to PS. THen another crank to WP to Alt (pulley not shown).

I want maximum water flow speed + not have to buy any new brackets. I see many for sale on Ebay and in Summit, so I am looking for help and suggestions on:

1) Belt routing
2) crank and PS pulleys (single, double??) - V belt only

Thanks in advance.

In order for your water pump to pump enough water you will at least 15% overdrive on your water pump.
On the crank pulley use a 7 in and on the water pump use a 6 inch or maybe go with a 6 inch crank and a 5 inch water pump.
Hope this helps