OHV stands for over head valve. It's not a brand name.
All of it.
6.5 hp
Northern Tool Company claims that the newer 208cc engines are "direct replacements" for worn out 6.5 HP engines. They list this under "historical data". http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200362863_200362863
over-head valve(s)
Cessna manufactures either single or twin engines.
MTD Powermore engines are made by Zongshen, a Chinese company best known for manufacturing motorcycles and motorcycle engines.
208cc is what in horse power for a snow blower??
The 2.2L OHV engines hold 10.3 quarts The 2.3L and 2.4L OHC engines hold 10.7 quarts
Both Cavalier engines, the 2.2 & 2.4 in 2000 are DOHC.
Should be very dependable withoil changes at 25 hour intervals and plug and air filter changes dictated by inspection
CC's of an engine refer to displacement. That has nothing to do with horsepower. Compressions ratios and other factors can cause large variations in horsepower for similar sized engines.
A 208cc engine would be a 8.32 Horsepower engine. The math goes like this... 1 x HP per each 25 cc for conventional engines. It is slightly lower for fuel injected engines, about 22 cc.