Not completely but I'm sure it will be for the fellow GTO owners here.
Preamble, I own a 00 Z28, and 05 GTO the GTO is stock and I drive it 100+ miles a day. The Camaro on the otherhand is far from stock with tubular SFC's, LCA's, PHR (adjustible), Torque arm (also adjustable), Moser 9" with locker, 4.11 gears and 31 spline axles, racetronix 255 pump seimen's 42# injectors built transmission with 3600 stall, MS3 cam with accompanying dual valve springs and hardened pushrods, ported LS6 oil pump, Pacesetters, true duals and 3400 lbs and probably a few things I am forgetting.
As many here know the LS1 suffered an accidental 2nd gear drop which later caused it to eat itself up. Turning into a 7 cylinder LS1 with irreparible block damage. I have an iron 6.0 block and am planning on building a 408 out of it but with house remodeling, vacation cruise, landscaping work etc the money to finish the build is slow going. I have however procured a complete low mile 5.3.
Sooooooooooo my thinking goes like this, I have a GTO that I have no immediate plans to mod or sell (never on the later). It is just a very comfortable good looking DD. One with an LS2 that at the meantime I don't really need seeing how it will not go to the track and I have too much invested in the Camaro to try to make this anywhere near as fast as it was. So I decided the LS2 will be snatched from it and the 5.3 in its place (although the LS2 intake etc will go on it) since I still plan on driving the car as a DD and the LS2 will recieve my cam kit (which went undamaged) ARP fasteners, LS7 lifters, and probably flycutting of the pistons and get dropped into the Camaro to get it back running in a much shorter timetable than what I have expected with the 408 and shoot for low 11's high 10's N/A.
For the GTO owners gasping in shock fear not, the 408 will be built and will go into the GTO eventually. For me its a win win situation, I get my Camaro back running, the GTO remains my DD but will now probably get a tad better gas mileage and I still have an extra block to build as the play funds arrive.
Flame suit on. For those wondering wether or not the possibility of a 5.3 GTO being traded off as a 6.0 fear not. The GTO will remain the DD even when I get the 5th gen to keep from racking 30K miles a year.
2000 Red 1SC Z28 A4 - dead for now
2005 Black GTO M6 6.0 - Split daily driver
1987 Silver Fiero GT - Split daily driver