Bruno,
at least you won one of the points Kees offered.

The aircraft must be the Packard A-1 or Type A.
It was Packards first own design, a sport type built for private buyers.
Only one machine was registered - it probably wasn´t a "bestseller".
The frame-like struts reminds me also of the Packard LePere LUSAC 11.
I´ve listed the Packard A-1 as a 1919 design (so it is listed at "aerofiles")
Because of this I didn´t look further to it.
(I was searching some late war types of Louis Becherau but didn´t found pictures)
The engine you posted is the
Packard 1A-744, as well a 1919 design.
Aerofiles rated the output to 180 hp.
The Packard A-1 was powered by a Packard 8 engine of 160 hp (aerofiles).
That´s probably this engine.
Another V-8 engine followed in 1921, but I assume this airplane was not stored anymore in the factory this time.
They built also the
Packard Liberty L-8 engine (200 hp ) but not until 1919 I think.
(German Wikipedia offers it was first tested on July 3rd 1917 and was orderd in a quantity of 100. But a higher power output was needed so the US Congress forced the mass production of the V-12 Liberty engine.)
Kees, I should have known better. Your challenges often jump over the time-frame. I do like this by the way, but it´s not easy where to look for.
But who said it should be easy.
Cheers
Aquilius