1/48 Pratt & Whitney R-1535 Engine - resin kit. It's not assembled and not painted.
For use with:
Vought SB2U Vindicator
Finnish Fokker D.XXI series 4
Curtiss SBC-3 Helldiver
Vector Resin kits are made in Moscow from modern casting resins and are arguably some of the best scale model engines and resin detail available in the world today in both accuracy and manufacturing quality.