what type of motor is in a integra rs

i just bought an integra rs…i blew a head gasget…i was going to replace it but befor i do i was wondering if the rs comes stock with a b16 or a b18…if a b16 i was ganna go ahead and replace it with a b18 but if it already has a b18 i was going to replace it with a b18b vtech

also are the wirings to hard to put on for vtech if not what do i do

please take the time to search as your questions have been discussed and answered before.

all integra’s rs/ls/gs come with a b18. depending on year it will come with b18a or b18b

there is no such thing as a b18b vtec(not spelled vtech)

swapping in a b16 has been discussed. search.