Since the rules read ANY Buick V6 in ANY passenger vehicle, what about dropping a hairdryer on the 2012 3.6 LFX from a Lacrosse?
http://gmauthority.com/blog/2011/06...ble-in-2012-buick-lacrosse-as-no-cost-option/
The rules are for Buick Based V-6 Engines. The series 1-2-3 3800 are Buick based V-6 engines and are improved versions of the original 3.8. Some parts from the engines will interchange. I believe the 3.6 is a chevy based corporate engine therefore I do not believe it would be a legal choice. Parts from the 3.6 will not interchange with the 3.8 and 3800 engines. Im not the rule guy but that's the way i see it.