Just some thoughts I'd like some expert (or non expert) feedback!. Just because this is a hardcore session doesn't mean you'll get flamed if you know little about the emisison rules in your state!.
Most everyone likes the idea of shoving an X-flow Aussie engine between the chassis rails of a post 1978-79-80 Mustang Fox or Fairmont or T-bird. However, indications are that unless you pay for a 20 grand sniffer test for the year of the engine build, it won't pass the federal specs for your state. Not to the letter of the law, anyway.
The 'Stateside' option I've heard about form Hot Rod is benchmarking the Aussie engine in 50 000 mile condition with the same year US vehicle with a stock engine set-up. Expensive. If its a 1988 block, you've gotta reach the mandated 1988 US regs. If its Cali, you have to reach the more strict Cali regs for the year unless you can find a backdoor method.
I've looked at trying to get a defacto 4.1 x-flow (efi, or carb) with two-way cat through the 1976 to 1988 Fed tests via benchmark testing.
Our Aussie cars passed the US 1972 specs from 1976 to 1985 with just EGR and a evapriative emissions.
The 1986 to 1993 x-flow versions passed the US 1975 specs too, but did so with just 2-way AC cats and extra EGR and vaccum fittings and no feedback carb. Unlike you cars, ours Aussie sixes had no 3-way cat and US air pump. Your cars had a full feedback carb from 1980 in all states, I think. With the US bits added to the Aussie engine, I 'd say there is no way they would fail, in my opinion.
Is anyone here interested in going through the legal loopholes of making an Aussie engine swap pass emissions tests without having the cars blackflagged? What are the options for such as swap, in your state. If you aren't into X-flows, but know what your state says about import engines, then go for it.
Most everyone likes the idea of shoving an X-flow Aussie engine between the chassis rails of a post 1978-79-80 Mustang Fox or Fairmont or T-bird. However, indications are that unless you pay for a 20 grand sniffer test for the year of the engine build, it won't pass the federal specs for your state. Not to the letter of the law, anyway.
The 'Stateside' option I've heard about form Hot Rod is benchmarking the Aussie engine in 50 000 mile condition with the same year US vehicle with a stock engine set-up. Expensive. If its a 1988 block, you've gotta reach the mandated 1988 US regs. If its Cali, you have to reach the more strict Cali regs for the year unless you can find a backdoor method.
I've looked at trying to get a defacto 4.1 x-flow (efi, or carb) with two-way cat through the 1976 to 1988 Fed tests via benchmark testing.
Our Aussie cars passed the US 1972 specs from 1976 to 1985 with just EGR and a evapriative emissions.
The 1986 to 1993 x-flow versions passed the US 1975 specs too, but did so with just 2-way AC cats and extra EGR and vaccum fittings and no feedback carb. Unlike you cars, ours Aussie sixes had no 3-way cat and US air pump. Your cars had a full feedback carb from 1980 in all states, I think. With the US bits added to the Aussie engine, I 'd say there is no way they would fail, in my opinion.
Is anyone here interested in going through the legal loopholes of making an Aussie engine swap pass emissions tests without having the cars blackflagged? What are the options for such as swap, in your state. If you aren't into X-flows, but know what your state says about import engines, then go for it.