si in 95 generation was the same motor as the ex (d16z6 sohc), but in a hatchback
si in the 00 generation (USDM) was the b16a2 in a coupe
gsr was the b18c(1) integra
here...go learn
if you want more than just engines, that site has all ecu's, specs, weights, etc...all kinds of great info for the aspiring honda driver