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#1 and #2 stamped on 800R Heads

M
Mar 24, 2008
25
0
1
B.C. Interior
Just bought a used head and the part #'s are the same but there is a
#1 stamped on the top and my old head has #2 ? the other
3 i checked all have the #2, all of different years 07, 08 & 10. Any one
know what this # relates to ? The guy i bought it from said it was off an 08.
Like to know before I bolt it on. Thanks.
 
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