[400TT]

TheDoc, ADR 37/01 is same as US 1983 emissions. So anything that meets 1983 and later USA emissions is compliant for us here. We have official Australian EPA and Australian Federal Automotive Industry documents that provide clear documentation of this. We provide this to engineers that require this evidence.

The 347ci engine you posted would be accepted as emissions compliant in QLD if you fitted 50 states legal heads and a 50 states legal intake and matching ecu. Just make sure you get the manufacturers paperwork with it. Lots of people have gone this way.

We would recommend using 351 family, it is just as compliant and you are in a much bigger family than can go 427ci and further. And the PACE 427 has an engine bay perfect for a larger small block Ford like this.

The Coyote is a totally different engine type with different pros and cons. We also support it.