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Head Casting #'s

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Old Apr 3, 2010 | 05:59 AM
  #1  
unclebuck50's Avatar
unclebuck50
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Stage III
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Default Head Casting #'s

83' FXRS 80" Shovel Motor.
The heads on this have casting #'s of
16705-80a-12-82
16707-80a-12-82
My question would be, Is there a way to know what the combustion chamber volume would be on the heads? I know from previous posts that it can be 135cc to 165 cc or better. If I measured correctly (Chamber ceiling to where the fire ring starts) they look to be about 135cc, but I need to know for sure before buying pistons. Thanx.
 
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Old Apr 3, 2010 | 07:32 PM
  #2  
FXRSBIGBORE's Avatar
FXRSBIGBORE
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From: FLINT MICHIGAN
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Is your bike stock? IE stroke and bore?

FXRS
 
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