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Author Topic: R&R stage 5 heads  (Read 1131 times)

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R&R stage 5 heads
« on: January 05, 2013, 11:20:06 AM »

What are anyones thoughts on running these heads with flat tops and either a T-man 590 or a fueling 574? I had these heads on my 117 at 11:1 with 662-2 cams, and it made great numbers. I have never seen the combo mentioned on a 110.

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Re: R&R stage 5 heads
« Reply #1 on: January 05, 2013, 11:29:43 AM »

Sure why not?
Never seen it done but I ran them on a strong running 107". Cam I chose purposely was a HQ600 due to flow characteristics of the heads and my needs with the high geared bagger. That one made mid 120s with a HPI 58 tb at 10.5. I would use the 662-1 by the way at a few tenths lower CR in a 110. All that said I can't see any advantage over the stock heads reworked, same CR and cam.


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Re: R&R stage 5 heads
« Reply #2 on: January 13, 2013, 10:49:03 AM »

I have them on a 110 at 11:1, CP flat tops at 0 deck with wood 8-6 cam, SE 58 mm TB and fatcat.  I believe that they are set at 81cc combustion chamber. They turned 125hp/124tq sae.  Bike runs and sounds great..

I am going to a 131 so I will soon have this set for sale

2011 CVO Street Glide
Black Diamond with Crimson graphics
Wood 8 cams, 58mm TB, Hillside heads, (Changed to R&R cast heads, went from 115 hp 113 tq to 125 hp 124.73 tq)  D&D Bosscat Wrapped performance baffle, awesome sound!
Harley LED headlights and passing lamps
Focal spkrs and Arc Audio amp
Wild One Chubby bars 0575


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Re: R&R stage 5 heads
« Reply #3 on: January 13, 2013, 05:01:53 PM »

As Don said, why not?
"Celebrating 30 Years of H-D Engine Building."
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 Same location for 25 years.

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