BBC blower manifold. This manifold will accept a 6-71 thru 14-71 blower and includes manifold, gaskets and a blower stud kit.
This manifold fits all 10.20" deck blocks 396, 402, 427, 454 and most other aftermarket Chevy blocks.
The floor has been radiused for better fuel distribution and the manifold is machined for a thermostat provision to make using on the street no problem. The finish is polished aluminum.