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relief

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handshifters

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Posts: 23

Joined: Sun Sep 12, 2004 12:01 am

Location: salzburg austria

Post Wed Nov 01, 2006 7:17 am

relief

:? Hi there, Does every ULH zylinder have relief and Ul do not? Or 13 fin zylinder does and 11 fin not? Thank's in advance Joe
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HonestJohn

Posts: 148

Joined: Sun Oct 31, 2004 1:01 am

Location: Dorothy, NJ. USA

Post Tue Nov 07, 2006 1:16 pm

The answers are- NO

I have several 13 fin cyls. the 74s arent relieved and one of the 80s is. I heard that some of the 80s got factory relief. If the 74s got bored out, you had to do it yourself. Honest
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handshifters

User avatar

Posts: 23

Joined: Sun Sep 12, 2004 12:01 am

Location: salzburg austria

Post Thu Nov 09, 2006 10:24 am

Re: The answers are- NO

HonestJohn wrote:I have several 13 fin cyls. the 74s arent relieved and one of the 80s is. I heard that some of the 80s got factory relief. If the 74s got bored out, you had to do it yourself. Honest

:? Thank you for replay. I have one set 13 fin 80s for my 37 ULH, they have reief. I don´t know factory or not. All my 11 fin zylinder don´t have relief but i belive 11 Fin zylinder are only 74s.
Once again do 80s have factory relief and 74s not?
Best regards Joe
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HonestJohn

Posts: 148

Joined: Sun Oct 31, 2004 1:01 am

Location: Dorothy, NJ. USA

Post Thu Nov 09, 2006 12:27 pm

OK<

13 fin came in both 74 and 80. some of the 80s were relieved. I don't think any factory 74s were relieved, but not certain because they could be bored to 80 anytime. The 11 fin I believe started out as 74s, then grew to 80s with overboring. But that is mere conjecture on my part. Any experts out there?

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