Model Year: The engine to be installed must be the same age or newer than the one being replaced. Crate engines can be used if they are configured to resemble an engine that was certified by the U.S. Environmental Protection Agency and/or the California Air Resources Board. This essentially means that the required emissions parts must be present on the engine.
Certification Level: The engine to be installed must come from a vehicle certified to meet the same or more stringent emissions standards than the one replaced.
Vehicle Class: An engine from a vehicle class such as a motor home, medium-duty truck, or marine application must not be used since these engines were certified to different types of emissions standards, using different tests.
System/Equipment: When swapping in a newer engine from a later-model vehicle, all of the relevant emissions control equipment must be transferred as well. This includes the carbon canister, the catalytic converter(s) and even parts of the on-board diagnostic (OBD) system. Some states have exceptions to this requirement, but the general rule is that as much of the donor vehicle's emissions system as possible should be transferred. The vehicle will likely run more efficiently with a full transfer of the system and shouldn't cause any undue heartache.
Of course, engine switching can be much more complex than described here, but these are good general rules to follow and should keep engine switchers out of trouble in most cases.
The U.S. EPA and many states have enforceable policies and guidelines on how to perform legal engine changes. For further information, please consult the EPA and California Bureau of Automotive Repair at: www.epa.gov/compliance/resources/policies/civil/caa/mobile/engswitch.pdf
Gridlock and bitter partisan politics continue to persist in Washington, D.C. and in the state capitols around the country, making positive legislative action difficult. Fortunately, the SEMA Action Network (SAN) has been breaking through the gridlock and promoting legislative solutions for the automotive hobby since 1997.
The SAN is a partnership between enthusiasts, vehicle clubs, and members of the specialty automotive parts industry in the United States and Canada who have joined forces to promote hobby-friendly legislation and oppose unfair laws. With nearly 40,000 members, 3 million contacts, and an ability to reach 30 million enthusiasts through print and press, the SAN is the premier organization defending the rights of the vehicle hobby. The SAN is free to join with no obligations or commitments.
When it comes to taking the action needed to protect the automotive hobby, only the SAN has the experience, the resources, and the dedicated network of enthusiasts to stop unreasonable bills in their tracks and keep the hobby free from overly restrictive government regulation.
The current economic and legislative environment is emboldening governments to become more aggressive with their anti-auto hobby legislation. States are seeking new avenues for generating revenue and new ways of dictating what you can and cannot do with your vehicle(s). The message government is sending is clear-the hobby needs the SEMA Action Network now more than ever. Enlist now in this fellowship of auto enthusiasts, join the SAN at www.SEMASAN.com.