1200 conversion pro tips

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Mar 18, 2017 | 08:58 PM

#11

roussfam

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From: Ottawa, Ontario

Quote:

Originally Posted by prodrag1320

Ok,i didnt see he was getting heads too

I never knew there was a difference. I wonder how many big bore kits have been choked off

Last edited by roussfam; Mar 19, 2017 at 08:12 AM.

Mar 19, 2017 | 04:07 AM

#12

prodrag1320

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From: deland,florida

the small 883 ports are not really the issue,its that the 883 chambers are a lot smaller than 1200 chambers and unless you use dished pistons or open up the 883 chambers,you`ll be running a lot more compression than you want (unless your setting up a very high compression motor,& in that case,you shouldn't run a OEM cast piston)

Mar 21, 2017 | 09:56 AM

#13

Hillsidecycle.com

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Wiseco offers a reverse dome piston that maintains OEM piston weight, and OEM compression, under the 883 chamber.
Scott

Mar 21, 2017 | 10:39 AM

#14

roussfam

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From: Ottawa, Ontario

Quote:

Originally Posted by Hillsidecycle.com

Wiseco offers a reverse dome piston that maintains OEM piston weight, and OEM compression, under the 883 chamber.
Scott

Amazing, the things you learn on the Forum

Mar 28, 2017 | 05:08 PM

#15

13RoadKing

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From: Jacksonville FL

Find out if you need ring compressor tool. Installing pistons is the worst part of engine repair for me.

Mar 29, 2017 | 06:46 AM

#16

prodrag1320

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From: deland,florida

Quote:

Originally Posted by Hillsidecycle.com

Wiseco offers a reverse dome piston that maintains OEM piston weight, and OEM compression, under the 883 chamber.
Scott

yup,thats what we use here

Mar 29, 2017 | 07:07 AM

#17

johnwesley

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Joined: Jan 2017

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From: mena, ar

Quote:

Originally Posted by Motorheadtilldead

Basically just getting Pistons jugs and heads and ordering a gasket set to finish it off these are all take off parts from another 1200 considering also swapping cams bring the donor bike was 1200s but was told it wasn't necessary

Depending on the year of the 1200s it will have dual plug heads and 10:1 compression. So a set of performance cams may work well for you. SE 496 cams would be nice as well as n4. If on the cheap a used set of stock W cams will be a nice upgrade to what you have. The S motor when set up with dual log was an ice motor with great mileage

Edit: I would keep the 883 heads in case you decide to do a performance build. Those heads are nice to work with if you decide to have them reworked. Also that allows you to keep riding your build whale parts are off getting reworked.

Last edited by johnwesley; Mar 29, 2017 at 07:30 AM.