The 5.3L LM7 truck engines are pretty cheap, economical, and ready to put out plenty of power.
But, I don't know how difficult it would be to keep a Z31 swap smog legal. There is a ton of aftermarket kit to run the Gen III's and LSx's in swaps, but how legal are the wiring harnesses that clip out sensors? Not O2 sensors, but the annoying ones like the gas tank pressure, etc. [not horribly familiar with them all].
The ECU's can have those functions edited out to keep from throwing error codes, but what all in terms of electronics does California require to pass a CARB engine swap inspection?
Also . . . some questions.
From the descriptions I've read, headers that exit to the rear clear the steering rack. Do the ones on the LM7 work?
http://media.gm.com/us/powertrain/en/product_services/2007/Photo%20Library/Gen%20III/Gen%20III%20Truck/07%205.3L%20V8%20LM7%20EXP%20LoR.jpg
What accessories clear? A/C would be handy but not a deal breaker.
Oil pan - I've heard that the Corvette one will allow a lower mount, and has more capacity with the winged pan but needs some work. True?
With the ECU in place, does the 4L60E need any special controllers or is it still good?
Are there any issues with running the LM7 hard? Not track day / autocross hard, but occasional trip down the quarter / windy backwoods mountain road now one drives hard :burnout:Oiling issues?
Any issues, thoughts or suggestions more than welcome!