Im using a standard volume pump, but I lost the stock oil pump bolt somehow. Is there a certain part number for the bolt or can a grade 8 bolt of same size work? If so, does anyone know the size.
I found a stud that ARP makes for SBC pumps, but wasn't sure if that would work or not.
I found this one, and then there is another one like it but is 3.125 inches long.

 

I'm using ARP studs on both my LT1 cars. The longer one is for high volume oil pumps.

 

Ok, I went ahead to summit and purchased the stud(and a few other things I needed) The stud seems too short though, the top of the nut sits higher than the top of the stud, and thats without the washer.

 

any ideas about that stud maybe being too short? I'll measure again and make sure. the pump isn't a high volume pump, but it is a high pressure pump.

 

Dealer

 

would love too because it would so much easier, but by the time I get off of work and get there the parts department is closed.
I measured the depth for the stud with the pump on and the one for a HV pump would work perfect so ill pick one up. wish I measured the first time instead of going off of part descriptions. live and learn...