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v6-v8 swap? CARB?

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Old 10-10-2011, 09:24 AM
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Default v6-v8 swap? CARB?

Hello All,

So i bought an 07 V6 classic for cheap with the intentions of swapping in a V8. So far I found an abudance of engines on craigslist, and ebay for reasonable prices.

My question is, will the state referee make a big deal if I put in a V8 that came out of a 05-06 truck?
Old 10-13-2011, 03:27 PM
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As far as I know yes, it's been a few years since I referred to the law book but it once claimed that the replacement engine needed to be of the same year or newer than the registration year of the vehicle, and must have all smog equipment applicable to the year of the engine.... best bet is to ask a smog ref. And if he says it's ok, be sure to smog check with the same guy.
Old 10-13-2011, 04:54 PM
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How's he gonna know? Everything looks the exact same 05-07
Old 10-13-2011, 09:11 PM
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Thanks for the replies.. I'll have to call a referee station and ask them some questions.
Old 10-14-2011, 01:56 PM
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As long as all of the 2007 V8 Emissions equipment is on the truck and working you shouldn't have a problem.
Old 10-28-2011, 01:28 PM
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I called a buddy of mine who's been a ASE master tech for 30 years.. He said all these trucks are pretty much the same, and not to bother going to the state ref. He just mentioned getting an engine off an 05-07c since there were some changes. And also a air box lid that has all the emissions stuff on the label.
Old 10-28-2011, 09:44 PM
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This is not "legal" by any means period. While you may pull the wool over a few peoples eyes, the road side smog testers will get ya.
Old 11-03-2011, 02:19 PM
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Your VIN will show up as a 6 Cyl. Throw in the engine, make sure you have all the 07 stuff, The Refs will give you a plate that tells you your swap is legal, and how to smog it and you should be good. It's my understanding they will try to help you if everything looks clean and you aren't trying to BS them or throw in some crazy engine that you shouldn't have in there. Once you get that plate, no one will hassle you.
Old 11-09-2011, 03:05 PM
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Thing is finding an 07c engine is a biotch! 05-06 engines are way more common.

Does anyone have any contact info for a state ref?
Old 11-10-2011, 01:44 PM
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Replacement Parts Guidelines - Aftermarket, Performance and Add-On Parts Regulations

Originally Posted by Air Resources Board
Engine Changes
Engine changes are legal as long as the following requirements are met to ensure that the change does not increase pollution from the vehicle:

The engine must be the same year or newer than the vehicle.

The engine must be from the same type of vehicle (passenger car, light-duty truck, heavy-duty truck, etc.) based on gross vehicle weight.

If the vehicle is a California certified vehicle then the engine must also be a California certified engine.

All emissions control equipment must remain on the installed engine.

Vehicles converted to 100% electric drive, with all power supplied by on-board batteries are considered in compliance with the engine change requirements. All fuel system components must be removed prior to inspection. For additional information contact the ARB helpline at (800) 242-4450


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