Fleetwood has no info on this RV. The vehicle was made in Michigan and the company has since gone out of business.
Calls to Fleetwood produce nothing. They say they have no info for anything that old.
I have learned that the engine is a 78 truck 440 and stamping on the block is 8T440 EHP with a casting number on the block of 4006630-440-9 cast on 10/28/77 by the day crew.
The EHP means: E, a reinforced block. and the HP, I believe, means High Proformance but am unable to confirm that.