I think it will work without a second idler as originally planned. I'll find out! The down side to this conversion is that the rad will have to be pulled to change the alternator but I don't have a problem with that. It will look factory and cost next to nothing.
So I had to change the water pump pulley to the smaller caprice one to gain clearance where the belt reverses by it's self.
Basically, the front drive setup is from a 1991 Caprice 305 engine plus my special idler/bolt piece. The reason I made it is because I felt that without it, there wasn't enough belt wrap on the alt. pulley. Alternators require several horsepower to work properly, much more than the smog pump that used to reside there. The alternator is a cs130, left offset tensioning ear drive end plate that I notched out to enable bolting up to the original smog pump location. The pivoting ear length is different so I'll make up a spacer for it.
The Monza steering pump has three pieces of 1/2 inch pipe spacers 5/8" long welded on to space it out from the head. The flat belt multi groove p/s pulley interchanges with a puller/installer tool.
The original Monza belt adjustment via the p/s pump makes finding the right belt length easy.
Next I'll assemble the front end with rad/condensor and figure out how to push air thru it. If that won't work, I believe I could set the motor back an inch or two by making new engine mounts.
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