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post #1 of 4 (permalink) Old 05-03-2013, 11:59 AM Thread Starter
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Head Port Question

Can a head that's been ported for manual compression releases be used on a new bike already equipped with ACR's? Do any changes to the head need to be made?
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post #2 of 4 (permalink) Old 05-03-2013, 02:15 PM
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Originally Posted by ep120794 View Post
Can a head that's been ported for manual compression releases be used on a new bike already equipped with ACR's? Do any changes to the head need to be made?
No. Manual releases vent through the valve. ACRs vent through a passage into the exhaust port.

You could use the heads with manual releases and disable the ACRs in the ECM. Assuming the front head also has the boss needed for the front engine mount.

2012 fltrx

Last edited by rageglide; 05-03-2013 at 02:17 PM.
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post #3 of 4 (permalink) Old 05-03-2013, 03:30 PM
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not really understanding your question,what does porting have to do with either type of c. release? do you mean heads that have been MACHINED for MCR`s?if so,like rage said,just unhook the ACR`s and run the MCR`s.might be better off just finding ACR heads and have them worked
 
post #4 of 4 (permalink) Old 05-03-2013, 06:44 PM Thread Starter
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That answered my question. Thanks guys.
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