Oil pan will sit on plywood. This is how to build a one off mount. Engine moved to stand. Aluminum struts hold motor correct distance from and square to firewall. Overhead view of 2,700cc motor on Pietenpol.
Gray tubes are intake, white are exhaust.
This motor has front starter. Side view of same motor. Plane uses cast iron manifolds, Stromberg carb mounts on bottom of intake. Motor has deep sump aluminum pan. Exhaust has ball joint to prevent cracking.