Can anyone tell me how I can determine the value or price range of a 1914 Scripps-Booth engine? At least that is what I was told it is with a Block # 645 F and 366x-1017 on distributor and ATLA9 on transmission. Would that be pre chevy?

An engine from a Scripps-Booth should be a Sterling engine, the same engine that was used in the Monroe. How complete is your engine? Ed

The block casting # 645 F indicates this is an early 1916 Scripps-Booth Model C engine that has open valves with no valve cover. The later 1916-7 Model C engines had enclosed valves with the Alanson Brush designed rocker arm adjustment.
The 1915-16 Monroe M2 used a Flint mfg. Mason OHV light car that featured just about the dumbist automotive design ever (also used on the 1917-9 Mason Model D Twin-4) was the csst-in cyl head outlet coolant manifold with rear exhaust discharged!
You should fine the Sterling engine serial # stamped at the base of the front cylinder on the right side -this might tell us more?
kenK

Ken, My M-2 Monroe roadster has engine 12136C. Can you tell me what year it is?Several other questions. My cut-out is an auto lite, is round, and about the size of a short tin can. Where does it mount? There isn't room for it on the generator. Also, do you know where I might find a coil? I have Connecticut 16 ignition. Thanks Ed P.S. I also have a parts car and several extra engines, I will send you the numbers from them when I hsve them.

Bonnie, I am interested in purchasing your engine. Can you please tell me how complete it is. Does it have a starter, generator, distributor, coil, rocker arms flywheel, clutch, transmission. These things would all help determine value. Ed Emerson

Bonnie, I tried sending you a PM, but don't know if it went through or not> I am very interested in purchasing you engine. Ed

Bonnie apparently has not been on this site since April 2nd of this year.

Ed - your engine serial # 12136C is a 1916 Sterling engine that was used in the 1916 Scripps-Booth Model C with the C standing for "cast iron pistons." Most Sterling engines used aluminum pistons. This Sterling engine was used in the 1917-1919 Monroe M3 and I would think M3 would have a engine # up around 18,000.
Have you had a chance to check out and record all the cast and stamped numbers and letters on the heads and blocks you have?
kenK