Anyone know the size of the bolt n nut to hold on a Water pump pulley to the pump?

I got a Aftermarket Pulley that will take a Flat Head Screw but dont know length and width. Anyone know it would help thank you.

 

Like these?

http://www.cfrperformance.com/CHEVY_..._p/hz-9912.htm

 

those look to be them!!!

Now do these just screw into the water pump? Or is it a Nut/bolt situation??

My car was a Serpentine setup and I changed it over to V-belt, with a High performance/flow pump mechanical no electric.

 

I'd assume they just screw in. I'm running a Vbelt setup, and I have 4 studs that are in the WP snout. Pulley slides over, and then IIRC it's a 3/8" nut you spin on to secure it. In fact, all of the SBC's I've ever owned had studs for the WP to pulley.

Those are pretty slick- be nice to get the added bit of clearance between the pulley and efan!

 

Here is a Photo of the Pump. And what it connects to.

 

5/16" UNF. Usually they're studs, but if they were bolts they'd be around 3/4" long. You might need a different length.

 

Havnt seen you in a while. How you been brother!!!

I moved to another state take care of Gma, and Left me baby home. Just got back and ready to finish her....

Hello Hello