Re: Epiphone Pickups
Before installing the set, put them face to face and look closely at the total width across the poles. Epi has both regular "vintage", and "modern" wide spacing (not F-spaced) pickups.
Some newer guitars get a pair of mellower vintage spaced pickups, like the ES-335 copies...and guitars like the LP Standards get one mellow vintage space for the neck and one "hotter" wound, wide spaced pickup for the rear.
When in doubt, you can always get an ohm meter, and measure each. Install the higher ohm pickup at the bridge.
The pickups that came out of my 2004 Epi LP were indeed stamped on bottom with "Epiphone". The "hot" bridge pickup is stamped with an "R", and has a black wiring harness. The neck pickup stamped with an "F", and has a red wiring harness.