common swaps are
B16 1.6 160ish bhp (ek civic)
B18 1.8 180ish bhp (dc2 integra)
H22 2.2 cant rember how much bhp (prelude)
K20 200 bhp 2.0(Ep shape civic and DC5 integra)


k20 swap is considered the best, newer engine 200bhp NA ITB's and managment can see 250 i believe, Would love an eg track car with k20