yes, parts are MUCH easier to get for an SR20. Try calling nissan an ordering a RB20 Water pump, timing belt or chain, headgasket, etc.

They actually made a NA SR20 in the USA so theeir are counterparts available.

Also, look at Nytryder, he has a MILD build an is taking down Vipers and 500whp mustangs on the HIGHWAY. look at Turbo Daves/Silviadriftrs RHD Silvia running 11.7s with 340whp

it doesnt take much to get an SR to make power, and its easy to build, tons of parts available, easy to replace.

My friend has an RB20 an i watched him wait 6 weeks for a water pump because they were order only from Japan, and i watched him wait for other misc stuff that couldnt be bought locally or nationally