Author Topic: 1937 UL engine  (Read 913 times)

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Offline gooru4speed

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1937 UL engine
« on: May 15, 2015, 11:58:19 AM »
Hi guys,
I'm restoring a 1937 UL 74ci. The engine is pretty bad and I'm looking for a complete stock cylinder and piston kit. S&S used to have a kit but today is discontinued.

Can anybody suggest me where can I get a kit for my lovely oldie?

Thanks very much!
JR

Offline HOGMIKE

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Re: 1937 UL engine
« Reply #1 on: May 19, 2015, 03:43:54 PM »
If you have no luck with that, you can always sleeve your cylinders you have now. I've done that in the past and it works just fine.
HOGMIKE

Offline panic

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Re: 1937 UL engine
« Reply #2 on: August 29, 2015, 09:49:53 AM »
The original 1937 cylinders for both the 74 and 80 use the same 13 fin casting (120-37, 120-371).
The UL small bore (3-5/16") cylinders can be safely bored to 80 (3.421875") + .060".