Can u fit Ecotec heads to a VR engine? I know the head gaskets are the same. Also the Eatons M90 will that fit a VR engine? Also trying not to be annoying, but how many ecotec engine components are interchangeable with the VR engine? Thanks.
I don't think you can. I say not too many parts are interchangeable with the Ecotec to the Buick, apart from the rocker covers lol.
as far as i'm aware you can't swap them over. and even if you did do it then you would probably have issues with the intake manifold as the ecotec has 1" less deck height then the buick engine