Can the epiphone p/ups be changed to gibson's, is it worth it ?

Korea, 1996, July as best as I can make out from https://forum.gibson.com/topic/139846-epiphone-serial-number-decoding/
without knowing the model and the condition, there's no telling what it's value is. Check reverb.com for similar guitars
safe to say tho that a Korean made Epiphone is not a classic (pre-Gibson) and will not be a high value guitar.

Your best bet for identifing the guitastr is to call Gibson directly.
Gibson Customer Service

Epiphone dating can be a challange, but it appears to be from August 1995 or 2005. To get the best answer, contacct Epiphone (Gibson) customer service

http://www.guitardaterproject.org/epiphone.aspx
Epiphone Talk 2 Us
Epiphone Customer Service Phone Number Toll Free Contact Address

In order to help you, we need the make, model, serial number, condition, and where you're located.

serial number not recognized,go here and enter the real s/n http://www.guitardaterproject.org/epiphone.aspx epiphone

http://www.guitardaterproject.org/gibson.aspx gibson

http://www.guitardaterproject.org/Yamaha.aspx yamaha

http://www.guitardaterproject.org/ibanez.aspx ibanez

http://www.guitardaterproject.org/fender.aspx fender

http://www.guitardaterproject.org/potcodereader.aspx pot code search

Do you have any pics of this guitar, a picture is worth a thousand words, this might help in the identifying of this guitar, if so just post them to this answer and I will see if I can help...

http://www.gibson.com/Files/schematics/EDS-1275wiring.PDF
TAKEN FROM:http://www.gibson.com/en-us/Support/TechSupport/Wiring%20Diagrams/

Here is the wiring diagram:http://www.gibson.com/Files/schematics/thinline.gif Here is a link for Gibson owners:http://www.gibson.com/en-us/Support/TechSupport/Instrument%20Information%20Guide/ Here is the generic owners manual:http://www.gibson.com/Files/Downloads/PDFs/Gibson/USA_Owners_Manual.pdf Epiphone is manufactured by Gibson.

Try the Epiphone site:http://home.provide.net/~cfh/epiphone.html or maybe here:http://www.fretnotguitarrepair.com/links_history.htm You might also look here:http://www.jedistar.com/jedistar_vintage_guitar_dating_gibson.htm I hope one of these helps.

Epiphone is a budget conscious gibson. And probably not made in the USA.
1957 - Gibson's parent company, CMI, buys Epiphone for $20,000, originally intending to harness its upright bass operation, but ultimately reviving the Epiphone name on guitars. A full line of newly designed acoustics and electrics is unveiled in 1958, and two years later Epiphone production moves into Gibson's factory in Kalamazoo, Michigan.

1970 - In the face of foreign competition, Epiphone production is moved to Japan. Through the 1970s and early '80s, the Epiphone line has little continuity, although it maintains respect as a quality import brand.

1983 - Epiphone production is moved to Korea.

1986 - Henry Juszkiewicz, David Berryman and Gary Zebrowski acquire Epiphone and Gibson. The Epi line is soon expanded to include traditional models like the Sheraton, Emperor and Howard Roberts, along with Epi versions of Gibson classics like the Les Paul, Flying V and Explorer.


http://www.epiphone.com/history.asp