What's the largest Big Bore kit without crankcase modding?

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Jul 10, 2015 | 08:39 PM

#11

Fatboy USMC

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From: West Texas

I just talked to the mechanic last week and he told me that 107 was the biggest you could go with no machine work. He also quoted me $1300 to do the job on my 09 Road Glide. That's parts included.

Jul 10, 2015 | 10:06 PM

#12

da Celt

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From: Maryville, TN

Quote:

Originally Posted by Fatboy USMC

I just talked to the mechanic last week and he told me that 107 was the biggest you could go with no machine work. He also quoted me $1300 to do the job on my 09 Road Glide. That's parts included.

That's good news for you! I'm not sure I can make West TX my local garage.

Jul 10, 2015 | 10:15 PM

#13

da Celt

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From: Maryville, TN

Quote:

Originally Posted by SBates08

Now your thinking!!!! 124 gets my vote.

I know, right??

Jul 10, 2015 | 10:15 PM

#14

da Celt

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From: Maryville, TN

Quote:

Originally Posted by dodger413

better get ready to put out more bucks than you can ever imagine.

my buddy put an S&S 124 in (unbelievably professional org)...by the time he was done, it was a beast, but far more money than he planned (luckily he had lots of it )

Ahhhh... So comforting the sound of wisdom. Thanks Dodger! Down from fantasy and back to the blackboard...

Jul 11, 2015 | 12:35 AM

#15

Retrop

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Joined: Nov 2008

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Quote:

Originally Posted by bigskyroadglide

Manual CR are the way to go. Relatively inexpensive in the grand overview of the build.

Well, maybe not the only way. In most cases if you go up to a 106" or a 107" you are going to be adding new higher performance cams anyway. S&S Easy Start Cams have the compression releases machined into the camshaft themselves and they work very well. Just another tool to consider when building an engine.

Jul 11, 2015 | 12:39 AM

#16

chipss36

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Joined: Dec 2007

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somone has a new whole 107 setup, for in good price in classfides section right now....
just sayin

Jul 11, 2015 | 02:12 AM

#17

Bluehighways

Stellar HDF Member

Joined: Feb 2010

Posts: 3,396

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From: Southern California

Went to a 103 on my 2010 Heritage 30,000 trouble fee miles ago, and still counting. Usng 10:1 Pistons with Cometic Head Gaskets gets close to a 10.5:1 Compression Ratio. Used an Andews 26 Cam which keeps the cranking compression pretty close to stock and have not added Compression Releases. No Starter Motor issues. Performance is Excellent! Also used TTS Master Tune, which I highly recommend.