Fuel Pump Questions
 

I've got GEN V 454's running on the standard belt driven pumps. I did buy new pump assembly's a few years ago from Dennis Moore but I don't know the GPH they deliver. I sent him an email but never heard back. I don't remember if I bought OEM or maybe upgraded. The "in and out" fittings have 1/4" bores. I removed one of the fittings from the pump and the physical threaded opening in the pump is 1/2". I suppose I would try to locate fittings that had larger internal bore's. My questions are, does anyone know the GPH of a stock pump and the second question is if these are stock pumps will they support 500hp? Thanks for your help.
https://cimg5.ibsrv.net/gimg/www.off...b09d05d0e8.jpg
https://cimg6.ibsrv.net/gimg/www.off...a9cc638f11.jpg
https://cimg8.ibsrv.net/gimg/www.off...d7cb172ad1.jpg
https://cimg9.ibsrv.net/gimg/www.off...37abde7284.jpg

It should as that is the same style pump that came on my stock HP500

Perfect. Thanks