Thread: SBC Help - Water Pump & Pulleys

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Nice looking setup Jack!!!!! It's probably an optical allusion but it sure looks like the WP pulley still sticks out pretty far.

The guys are right about the about the balancer and much as I hate to admit it I had forgotten about that (ain’t old age great). However the stock SWP and pulleys can be used with a fan and the thick balancer. The key is you must use a single groove crankshaft (lower) pulley.

Here is the 283 I currently have on the stand (SWP/thin balancer/2 groove pulley). The fan belt is in the outer groove of the crank pulley.



The thick balancer will space the rear pulley groove out to line up with the water pump pulley (a 2 belt lower pulley on a thick balancer would interfere with the fan however). The single groove lower pulley/thick balancer/head mounted alternator set up was what I used to run back in my V8 Vega days.

The down side is you will be limited to running an alternator only with stock pulleys. A way to add accessories might be playing with a 2 groove water pump pulley and using the second grove off the WP to drive the PS or AC (Cadillac used to run the alternator off the water pump pulley so it’s not like it’s a concept that’s never been used before ).



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