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186s v 186p head
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blissy Offline
#1 Posted : Thursday, 17 May 2012 6:57:02 AM(UTC)
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Is there a difference? Is the 186s head a breed of its own?

Edited by user Thursday, 17 May 2012 7:07:32 AM(UTC)  | Reason: Not specified

186s
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HK1837 Offline
#2 Posted : Thursday, 17 May 2012 5:09:38 PM(UTC)
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Should be the same unless one has factory air.
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git Offline
#3 Posted : Thursday, 17 May 2012 11:29:31 PM(UTC)
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quote:
Originally posted by blissy
Is there a difference? Is the 186s head a breed of its own?


Greetings, The bare castings are the same and have the same casting number. After that they are very different in the areas of valve springs and the exhaust valves fitted.
look out, the guru is coming through...
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blissy Offline
#4 Posted : Friday, 18 May 2012 1:23:01 AM(UTC)
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what would i be looking for? larger valves? double springs?
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castellan Offline
#5 Posted : Saturday, 19 May 2012 7:36:43 PM(UTC)
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The 186 S motor has only a bit stronger valve springs and that's all and the valves are the same as std.
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HK1837 Offline
#6 Posted : Saturday, 19 May 2012 10:06:33 PM(UTC)
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Exhaust valves are different, but the originals may not be there anymore anyway. Same with springs. As long as you have the right cast number head I wouldn't bother looking any further.
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castellan Offline
#7 Posted : Sunday, 20 May 2012 5:19:27 AM(UTC)
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Different exhaust valves as to what.
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HK1837 Offline
#8 Posted : Sunday, 20 May 2012 5:15:12 PM(UTC)
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Heavier, probably different grade material.
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