Oil pump

[Super68]

Hi All,

How can I tell from looking a pump if its a high pressure pump or not? It came with the car when I brought it along with a few other parts and if it's a high pressure pump I'd like to install it. The only numbers and letters I can see stamped are USA 110. Any help would be great.

Thanks
Andrew

[Chryco Psycho]

remove the plug on the rear of the pump body & see if it hasa black or red spring , black is high pressure red is stock , your oil pressure guage will tell you as well , cold start with near 80 PSI is HP for sure