Author Topic: Aluminum cylinders for flatheads  (Read 3017 times)

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Offline trex

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Aluminum cylinders for flatheads
« on: December 31, 2011, 11:27:05 AM »
Besides cost, is there a good reason no one makes aluminum cylinders for Flathead motors, Harley or Indian? Seems they would run cooler and be lighter.

Offline Pzokes

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Re: Aluminum cylinders for flatheads
« Reply #1 on: January 03, 2012, 07:03:21 AM »

If you want to make the mold, I will cast them.  You will still have to do the finish machining.  Yes, it would be a lot of work with a questionable/low demand.  There are reproduction items being cast up for WR's but they still race them. 
There's miles to go before I sleep.

Offline ohio-rider

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Re: Aluminum cylinders for flatheads
« Reply #2 on: January 03, 2012, 07:20:07 AM »

Offline Pzokes

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Re: Aluminum cylinders for flatheads
« Reply #3 on: January 03, 2012, 11:31:14 AM »
I thought that he was talking about aluminum cylinders, not aluminum heads.  There are a few people that manufacturer aluminum heads.  There are a few people that manufacture cast iron cylinders.
There's miles to go before I sleep.

Offline ohio-rider

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Re: Aluminum cylinders for flatheads
« Reply #4 on: January 04, 2012, 06:17:01 AM »
Oops! My mistake, I engaged my mouth before my brain again.  :embarrassed:

Offline trex

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Re: Aluminum cylinders for flatheads
« Reply #5 on: January 08, 2012, 07:49:18 PM »

If you want to make the mold, I will cast them.  You will still have to do the finish machining.  Yes, it would be a lot of work with a questionable/low demand.  There are reproduction items being cast up for WR's but they still race them.
I don't need any Pzokes, just curious why they were never made. Are you saying WR racers had aluminum cyliders?

Offline Pzokes

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Re: Aluminum cylinders for flatheads
« Reply #6 on: January 08, 2012, 10:29:27 PM »
No.
There's miles to go before I sleep.

Offline shuswapkev

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Re: Aluminum cylinders for flatheads
« Reply #7 on: August 17, 2012, 04:58:33 AM »
alu cylinders???for flatheads...
the biggest problem flatheads have is controling the temperature between cylinder and exhaust valve...
your alu cylinders would be shelf ornaments before long...

Offline vic vasalino

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Re: Aluminum cylinders for flatheads
« Reply #8 on: August 29, 2012, 04:34:43 AM »
Has anyone checked out this site? www.knuckleheadmotoren.de
They are making a bunch of parts and include aluminum cylinders even have plans to make whole motors.It says they have bigger plans to put out complete bikes,if I read the site properly! What do you think of it?

Offline trex

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Re: Aluminum cylinders for flatheads
« Reply #9 on: August 29, 2012, 08:51:33 AM »
I think it's pretty cool.

Offline stroker800

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Re: Aluminum cylinders for flatheads
« Reply #10 on: March 27, 2013, 03:13:16 PM »
Vision grinding and Sorenson both make aluminum cylinders for shovels....My guess for others is cost and demand...but I believe there is problems with expansion......Mike Brown us grey iron for his cyls...Axtell uses ductile iron for hi

 evo cyls to reduce growth.
Dave

Offline panic

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Re: Aluminum cylinders for flatheads
« Reply #11 on: August 29, 2015, 09:51:44 AM »
An aluminum flathead cylinder becomes a potato chip at full operating temperature - not a straight line to be found.