Reffing an engine?, anyone done it? Options

[DST94]

I was looking into some engine swaps and have come up with a pretty great sounding swap. Ill be posting up after i finalize the plans but have a few questions about reffing an engine so i dont have to find my way around the smog. (cali regulations by the way)
The block will be the 5SFE.

Can i reff the 5SFE in a 94 ST? Yes? As long as the block is 94+?

Do the heads of the engine affect the reff success? Only if theres a VIN on the heads? Are there?

Does the Drivetrain affect the reff success?

How do i go about reffing if all this works out?

Any input would be really appreciated. . .

-DST 94

[richee3]

Yes, the 5S was offered in California in practically every single 90's model four cylinder Camry you see. Andrew said the 5S-GTE engine, which is the 5S block with a 3S-GTE head on it. That is what is illegal in California.

I'm a bit confused by this thread. You said you're looking into engine swaps, then asked about smog with a 5S-FE in a 1994 Celica ST. The ST has a 7A-FE engine in it, not a 5S-FE. So you're looking at swapping a 5S-FE into your ST?

[DST94]

I'm a bit confused by this thread. You said you're looking into engine swaps, then asked about smog with a 5S-FE in a 1994 Celica ST. The ST has a 7A-FE engine in it, not a 5S-FE. So you're looking at swapping a 5S-FE into your ST?

Yea, im looking to swap, but i want to find a way to make it as legal as possible. So i figure i go to an engine that has come in cars legal in Cali, 5SFE with 3SGTE Head would put out big numbers (according to my research) so im looking to see how hard it would be to reff that engine in my celica.

Andrew- I dont live in LA, i dont know how big of a difference that will make, but i wont be seeing any LAPD anytime soon. Im pretty far south from it actually. And whats wrong with turboing? does that effect the ref? i thought that you could turbo an engine, and that it wasnt an illegal mod?