BBC blower manifold. This manifold will accept a 6-71 thru 14-71 blower and includes manifold, gaskets, and a blower stud kit. The finish is polished aluminum. This manifold fits all 10.200 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.