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View Full Version : gm heads ??????????


aiello
11-18-2009, 10:39 AM
i have a set of pro topline heads . there is no bowtie emblem , and the info i found says nothing about them being vortec heads. so my ??? is are they vortec or not. really nice but not sure if i can use them in my class. if not then they will be sold thanks.