98 pontiac firebird

was wondering what engine i had. it has the v0207hv stamp on it but im not sure about the nnn nnn-nnnn. none of the numbers i found match up to 10 numbers long

i have a 98 firebird with the 3800 v6 in it
i got a v8 (described above) that i’d like to drop in it. possible? it came with a tranny or i have another tranny off of a ls1