Board index Flathead Power-Technical Questions, Answers, and Suggestions Big Twin Flatties U-UL engine

U-UL engine

Moderators: Curt!, Pa

Post Thu Jun 09, 2005 11:25 pm

Posts: 14
Location: Danvers,Ma 01923
Hey guys,this is a great site.I was wondering if anybody could help me,in finding a big twin flathead engine or cases.I build traditional style hot rods on the side and would like to build a flathead bobber. Thank you Nils

Post Fri Jun 10, 2005 4:19 am

Posts: 332
Location: Whitley City, KY, USA
Nils, check ebay...just saw a UL engine in need of a rebuild, or wait for Anders to get his production going on NEW and improved engines.
Graham

Post Fri Jun 10, 2005 4:21 am

Posts: 2399
Location: atascadero cal usa
shoot me a e
i mite have a u series motor for ya

Post Fri Jun 10, 2005 2:38 pm
Pa Site Admin

Posts: 5806
Location: Ohio USA

Welcome Nils. Have you given up the Flat Track project notion? Pa

Post Fri Jun 10, 2005 6:50 pm

Posts: 14
Location: Danvers,Ma 01923
Thanks guys for all the info.What can I expect for hp from a Flathead 74ci-80. I'm thinking... mild cams,bigger valves,carb etc etc.Does anyone make a stroker kit for the flathead and what about flow relieving ?
I'm new to all this so any info would be great.Thanks again

Post Fri Jun 10, 2005 7:02 pm

Posts: 325
Location: Viola, WI

Hey Nils,

A stocker will deliver approx. 28-30 Hp on the rear wheel.
Cams are hard to get so the easy way to get some more power would be to raise the CR and relieve the cylinders. Increase of the stroke is always a good way to more power.
You can get stroker wheels from S&S or T&O.
Depending on the stroke, the pistons might be a problem to find.
A modern carb will definitely help on the way.

Anders

Post Fri Jun 10, 2005 7:03 pm

Posts: 332
Location: Whitley City, KY, USA
Nils, Don't think anybody has a kit, have to do it yourself (or have someone do it), take a look in the archives here for more info, also try the "Panic papers" for more really good stuff...Victory Library for info and parts.
You might want to check the thread here about the "Flatboy" might be to your liking.
Graham

Post Fri Jun 10, 2005 9:29 pm

Posts: 14
Location: Danvers,Ma 01923
When I finally find an engine,who does good flow relieving and engine work near me
(boston).I would work on it myself but have never worked on a flatty.

Maybe I will try it myself.What are some places that sell engine parts thanks

Post Sat Jun 11, 2005 4:06 am
JIm

Posts: 801
Location: Planet Earth
Nils

Are you north or south of boston?

I'm south of Boston and might be able to get you to a one or two people, or might I be able to help a bit. Best thing you can do would be to get Panics books on Flatheads www.victorylibrary.com. There are not to many people left in the area that can do compitant work on the old motors. The ones I know can do the standard rebuild work but not much more. Most of the other mods you might have to do for yourself.

Jim

------------------
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Flat Boy
Why buy it when you can make it

Post Sat Jun 11, 2005 4:18 am

Posts: 2399
Location: atascadero cal usa
panic mite take on some work but ???
he'll let you know
but i'll tell you one thing the word cheap doesnt go well with HD

Post Mon Jun 13, 2005 11:30 pm

Posts: 14
Location: Danvers,Ma 01923
I guess I used bad choice in words CHEAP PROJECT haha. Everytime I built a hot rod,I would come up with a $ number and it would always be double or triple.


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