LEM,
Information describing procedures in case of "Engine Failure In The Landing Configuration" was in the old 737 Operations Manual, Volume 1, Non-Normal Procedures section (expanded information), page 03.05.07. Anyway, there's no mention about Engine Failure after starting a G/A, but a maneuver in the event of a G/A with an E/O before the decision point (in my point of view even more restricted)
When the new 737 manuals edition arrived, all information concerning that maneuver is in the FCTM, but without an explanation about Vref + 15 and V2 for F1...Well, my manual can be outdated, since I've not been flying 737 lately.
Regards,
Bkmk