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Kahuna · 08-03-2010, 12:59 AM

Re: the Kloth engine. Virtually all of the engine details have been published in one book or another. There are, however, three areas NOT discussed:
1) Port work
2) Cam timing details
3) Final head developement

At 267 cubic inches, I don't think the engine can really be considered small. Certainly smaller than what is currently available in "off the shelf" stroker assemblies, but not small. Further, whether the ports are a limiting factor or not, and I think they are, I have to believe any Flathead guy would be very happy with an output in the 280 HP + range, regardless of displacement. Keep in mind, this (Kloth engine) was one single carb (4 bbl), stock Merc crank, rods, etc. 6200 rpm shifts, 6000 rpm thru the traps. Yummy! makes me drool.

Jim

08-03-2010, 12:59 AM	#89
Kahuna Senior Member Join Date: May 2010 Location: NorCal Posts: 2,617	Re: Boring a flathead Re: the Kloth engine. Virtually all of the engine details have been published in one book or another. There are, however, three areas NOT discussed: 1) Port work 2) Cam timing details 3) Final head developement At 267 cubic inches, I don't think the engine can really be considered small. Certainly smaller than what is currently available in "off the shelf" stroker assemblies, but not small. Further, whether the ports are a limiting factor or not, and I think they are, I have to believe any Flathead guy would be very happy with an output in the 280 HP + range, regardless of displacement. Keep in mind, this (Kloth engine) was one single carb (4 bbl), stock Merc crank, rods, etc. 6200 rpm shifts, 6000 rpm thru the traps. Yummy! makes me drool. Jim