gearhead559

I have some F3VE-aa and they have GT stamped in them in a couple spots!
What are these heads from! They are 5.0 heads, but are they the 93 cobra heads? Are they the early iron Gt-40s?

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90 lx notchback
460 C-6 swap
hooker swap headers,3" X-pipe 2 chamber Flowmasters
4.10 gear's summit girdle cover,
Weld Rodlite's 15x3, 15x8
Hoosier Quicktime pro 28x11.5x15
lakewood upper & lift bar lower's,shocks,struts,coilover kit,camber caster plates.Ce anti roll bar.
850 race carb,holley black pump,NOS big shot kit(225 shot)holley blue pump,Rci 8 gallon cell.
Mallory distributor,MSD digital 6 plus box,blaster coil.
powerbrakes,power steering,power windows.full interior!