Joel,
Do I hear the wheel spinning in your head? Why not do one yourself?

Yeah you probably smell the smoke too

Charger V8 General Lee. I do have 3 of them plus the one I have to get picked up. HMMMMMMMM. OK I'll have to add that to the to do list. At leaste I'm not worried about running out of projects. Now to sell the Hybrid charger to fund a few more

Ok math maticians get our caps on . Ebay listing says 16 cubic inch. My 16horse onan has 40.3 cubic inch.SOoooo,,, I figure that motor is about7 to 7and a half horse .

Best way to know would be find out the bore and stroke and do the math!. If ya ot the book it should be in there . I got friends that go-kart raced years ago . They got modifieds and sprint cars now ,, sure. they could figure it out
Myself I just jave a factory stock.


Terry

There's no formula that will tell you the horsepower by only knowing the cubic inch displacement.
A Farmall Cub 4 cylinder is roughly 60 cubic inches and is almost 9 hp and a 113 cubic inch A/B/BN engine is roughly 15 hp. Or.... how about a 672 cubic inch Mack diesel that's only 175 hp?

Compression ratio, rpm, cam specifications, etc. all play a role in determining horsepower.

I would guess that little mil-spec parallel twin to be in the 6 hp range (think two 8 cubic inch 3hp Briggs engines hooked side-by-side) and probably about the same torque rating as a "good" 10hp single, depending on the weight of the reciprocating assembly.

Maybe one of these days I'll get this project done when i'm finished with the Pond & some customer tractors.
I have no heard mine run yet...but have been told by others that use them it pull about equal to a 10HP single.
I'd say TT estimate is about right.