Are you sure? Demand for JZ series from diesel vans converting to LPG has absorbed all excess from the market and pracitcally doubled the prices.

all petrol engines are shooting up in price, yes because of supply and demand,

and well frankly, the sr and jz are both petrol. so what is the difference between them regarding prices? aviability?

if their is 20000 2jz in thailand, im sure it would cost less for one, than 100 sr20 for one.

anyways im not saying the jz are cheap, im just saying they can be equally cheap for the jz as for the sr.

but hey if you really want cheap, just stick a diesel in. haha. and the cost in the longrun will outpay for engine swap within a year or 2. haha.