why isnt there a GP for vortec heads
Supreme Member
Joined: Sep 1999
Posts: 3,197
Likes: 10
From: Manassas VA
Car: 04 GTO
Engine: LS1
Transmission: M12 T56
Demand. Why would they have a GP on them when for a long time there they were back-ordered for months, couldn't even pretend to keep up with the orders.
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