Ok...well then thats a Vortec head, still has center bolt,a nd still use a roller cam.
This is a LG4 stock replacement engine. Unless someone swapped Vortec heads on it, its the stock stuff, and if its a LG4 replacment for an 87 Camaro, then it should be a roller motor.
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2/20/2013: They Day the ****s Stopped
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