K&B Torpedo (Greenhead) .09 engines
In 1954 K&B announced their new .09 addition to their popular line of greenhead engines. They already had them in .15, .19, .201, .23, .29, .32, .35 & .45 so I was glad to see an .09 being added. I waited and waited and K&B finally started producing them in 1957.
The first production run had a problem of the exhaust port sagging so they redesigned the case with a baffle in the center of the port to keep it straight.
Here are pictures of both types. K&B also offered accessory ring mounts for firewall mounting.
The Torpedo .09 was an amazing little engine and produced the highest HP per displacement of all K&B greenheads.