Yep, cams gotta be driven by something, no matter where they're situated. Chains, belts or gears.

 

V-rods aside, I don't believe Harley has ever made a DOHC engine. Knuckleheads, Panheads, Shovels, Evos and Twinkies have the cam or cams, in the block and use overhead valves operated by pushrods. The exception would be flatheads like the 45 inchers in the Servicar, or wherever else that 45inch motor was used. The flathead has both the cams and valves in the block, just like a lawnmower. No idea about anything made in the early 1900's...

 

- sidevalve.

- now THATS something to look out for.

 

I've heard them called that, but I always called them flatheads...I'm sure people have called them much worse I actually almost bought one: a '38 flathead for $1800. It was in another frame, but had the suicide clutch/shift and was in running condition. Would have been my first Harley. Got a Sporty with a bad generator instead...

 

at least i stand corrected. the cams on the twinkies are indeed chain driven. please forgive me.

 

Hey Craig C love the new air cleaner cover..

that is T-I-T bro..[sm=smiley20.gif]

 

Flathead, Knucklehead, Panhead, Shovelhead, EvoHead, TwincamHead, Gimme Head... no overhead cams here - my .02 worth...

 

Ha! I must be an old guy, then...Double OverHead Cams. I first heard that term in the early '60's, from the automotive world.

"Dual" applies to exhaust systems.

And "Duel" applies to a gunfight...or maybe banjos.

 

You are not old, I know it as "double" also ,and exhaust as dual.

 

Thanks man!