(625 ILCS 5/3-419)
(from Ch. 95 1/2, par. 3-419)
Regulations governing change of motors.
The Secretary of State is authorized to adopt and enforce such
registration rules and regulations as may be deemed necessary and
compatible with the public interest with respect to the change or
substitution of one engine in place of another in any motor vehicle.
Where a substitution or change changes the classification of a motor
vehicle for registration purposes resulting in requiring the payment of a
greater fee or tax, the owner shall be required to reclassify the
registration and pay the higher or greater fee or tax due.
(Source: P.A. 77-364.)