so my friend and I were having a discussion about having k20 swap in a 00 si. all I know is that if the motor is usdm and newer than the chassis, it's considered to be legal. my friend says that putting a k series engine into a car that originally came with a different engine (b series, d series, etc) would be illegal for a particular reason (I don't remember why). so now it's got me thinking..

would a usdm k20 in a 00 si be legal ?

 

yes, engine has to be same or newer year as the car engine is going in. i thought for a k20 swap to be legal was you gotta put the rsx gas tank in there too (if engine was from rsx)

 

so if it was from an rsx, I would just need to put the rsx gas tank in there and i'd be able to get the car bar'd/smogged ?

 

yes it is ilegal... cops waiting to call tow,, that just dependes on the state your plates are in tho cali for shure,

 

i guess in texas were lucky cuzz we dont have smog.