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CARB Legal Engine Swap

1566 Views 5 Replies 5 Participants Last post by  81126
More specifically thinking about a manual transmission setup. I know the obvious/most popular choice is the GM E-Rod series of LS engines. Fully dressed with transmission and cats, all brand new with warranty is just under $12k.

But I've been yearning for something a bit different. Ford has the 3.5L ecoboost (PN: M-6007-35T). 370hp/420lb.ft sounds great and in smaller package. But it is not CARB legal. Heck even the 270hp 2.0L i4 ecoboost sounds like it could be fun. In something like a 560SEC, it would make the car rear weight biased. How cool is that! GM is said to be coming out with a 3.6L V6 LF3 crate soon. Good for 430hp/420lb.ft, if they would do that in an E-Rod type setup that would be perfect.

If the entire lot is transplanted from say an ecoboost F150 (excluding the transmission), will that pass CARB certification? Some people say it will some say it won't because the drivetrain has to be certified emissions compliant in your chassis. But then I'm also told that this can be achieved by the sole CARB shop in southern California at a cost of $5000. Massive rip off as its just basically measuring your emissions and then printing a sticker.

Then there is the complication of being OBD2 compliant. If the donor is post 1995 does that mean the recipient needs to be OBD2 compliant as well?

Just trying to navigate the republic of California....

And haters, please contain yourselves :)
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1. Put in anything you like, register it "not in Kalifornia". Nevada, Oregon, etc.
2. Put in an LS engine / tranny and then just don't tell anyone. FYI, an emissions sticker that looks exactly like the MB one on the radiator bulkhead can be produced that has been updated to show the equipment present on the car so the emission inspector is only looking for the stuff you want him to look for.
3. Put in the LS engine and enough emissions stuff to pass visual inspection. FYI, a GM computer required to run the engine and to be read from the OBD II port can be obtained that *never* throws an emissions code.

MB 560 engine is 452 pounds undressed (e.g., no alternator, etc.), LS engines are about 394 pounds dressed. LS engines can be obtained from about 305 HP (stock LS1) to over 700 (stock LS9), and all are the same size, have the same mounting bolt patterns, same exhaust port size and bolt patterns, etc. Put in whatever you can find, "later" just bolt in whatever you want. There are easy to follow instructions available on how to build a 1,000 HP LS series engine.

Whaddya want, how deep is your checkbook?
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Today's Jeff Foxworthy ******* Calendar was right on target!!
One more thought - in Nevada, my Classic Car license plate allows me to skip any emissions testing as long as I'm under 5,000 miles per year. And...I don't need to have the car tested *before* getting that tag, which is exactly what is going to happen to the FrankenBenz (if I *ever* get it running). Yes, since you asked, I do have multiple '87 560SEC speedometers.


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