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Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

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  #11  
Old 7th January 2020
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v&v makes good products at reasonable cost. running the setup in my 74ch.
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  #12  
Old 18th February 2020
RicThompson RicThompson is offline
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I chose the Kibblewhite lightweight racing springs along with their black diamond valve kit.
https://shop.kpmivalvetrain.com/c/v-...tweight-racing

https://shop.kpmivalvetrain.com/c/pr...3005.1120874.0
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  #13  
Old 18th February 2020
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you went with 900 valves for a 65 inch motor?
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  #14  
Old 19th February 2020
RicThompson RicThompson is offline
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Quote:
Originally Posted by brucstoudt View Post
you went with 900 valves for a 65 inch motor?
Yes I did. The heads are ported and cleaned up. 900 valves came out of it. There may have been a potential gain with larger valves but I think it will be ok.
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  #15  
Old 19th February 2020
RicThompson RicThompson is offline
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OK, after posting above I checked on my order status and my original order which I placed last Friday still had not shipped so I cancelled it. I placed a new order with same spring kit and the 70 and later larger intake valve kit. That order shipped within the hour.
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  #16  
Old 19th February 2020
needspeed needspeed is offline
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So now you have to cut a larger intake seat in your ported and cleaned up heads?
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  #17  
Old 19th February 2020
RicThompson RicThompson is offline
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Quote:
Originally Posted by needspeed View Post
So now you have to cut a larger intake seat in your ported and cleaned up heads?
Going to the larger valve is actually going to be beneficial in getting the valve seated properly in the head. I had concerns with the smaller valve being too deep in the seat.
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  #18  
Old 19th February 2020
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Originally Posted by RicThompson View Post
That order shipped within the hour.
yeah much bigger demand for those,since the 70's or so.
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