Hello all, long time lurker, first time poster. Just got my first SBC, a 327, and I'm trying to find out if the PO was true in that it is a Corvette roller 327.

The engine cover, that trapezoid, I cannot find anywhere on the web in images or text. What is this thing?

Thanks all!00V0V_lRzg7pFYpT7_600x450.jpg