Big bore
Grand HDF Member
Joined: Sep 2013
Posts: 3,820
Likes: 587
From: Michigan
OK. Your money, your bike. Going to be an expensive build when you change crank/flywheels.
I would have just built a 95" if it were me, using the 103" cylinders & SE heads, with the stock cases/crank/flywheels.
I'd send the cases to Dark Horse & let them do their magic to make things a solid build, including upgrading the left crank Timken bearing setup. The new crank from them is $1600 plus new rods, another $300 to $900. You'll want it balanced, so add another $525 for that. The cases work will be another $900 to $1400 to update to 07 & later cam conversion and Timken bearing. You could easily put $6,000 into that 103" upgrade before adding cams, lifters, oil pump & pushrods, which could be another $2,000. Plus labor (from your questions, it seems clear you don't have the knowledge to do the work yourself) so add 10 plus hours at maybe $150/hour?
For less than $4600 you can purchase a new 103" H-D long Block with matching VIN number. Yea, it won't be a Dark Horse solid build, but it will include the upgraded left crank bearing & much more. And it will still need a cam & tune upgrade.
I would have just built a 95" if it were me, using the 103" cylinders & SE heads, with the stock cases/crank/flywheels.
I'd send the cases to Dark Horse & let them do their magic to make things a solid build, including upgrading the left crank Timken bearing setup. The new crank from them is $1600 plus new rods, another $300 to $900. You'll want it balanced, so add another $525 for that. The cases work will be another $900 to $1400 to update to 07 & later cam conversion and Timken bearing. You could easily put $6,000 into that 103" upgrade before adding cams, lifters, oil pump & pushrods, which could be another $2,000. Plus labor (from your questions, it seems clear you don't have the knowledge to do the work yourself) so add 10 plus hours at maybe $150/hour?
For less than $4600 you can purchase a new 103" H-D long Block with matching VIN number. Yea, it won't be a Dark Horse solid build, but it will include the upgraded left crank bearing & much more. And it will still need a cam & tune upgrade.
Thread Starter
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Novice
Joined: May 2021
Posts: 15
Likes: 0
From: alaska
OK. Your money, your bike. Going to be an expensive build when you change crank/flywheels.
I would have just built a 95" if it were me, using the 103" cylinders & SE heads, with the stock cases/crank/flywheels.
I'd send the cases to Dark Horse & let them do their magic to make things a solid build, including upgrading the left crank Timken bearing setup. The new crank from them is $1600 plus new rods, another $300 to $900. You'll want it balanced, so add another $525 for that. The cases work will be another $900 to $1400 to update to 07 & later cam conversion and Timken bearing. You could easily put $6,000 into that 103" upgrade before adding cams, lifters, oil pump & pushrods, which could be another $2,000. Plus labor (from your questions, it seems clear you don't have the knowledge to do the work yourself) so add 10 plus hours at maybe $150/hour?
For less than $4600 you can purchase a new 103" H-D long Block with matching VIN number. Yea, it won't be a Dark Horse solid build, but it will include the upgraded left crank bearing & much more. And it will still need a cam & tune upgrade.
I would have just built a 95" if it were me, using the 103" cylinders & SE heads, with the stock cases/crank/flywheels.
I'd send the cases to Dark Horse & let them do their magic to make things a solid build, including upgrading the left crank Timken bearing setup. The new crank from them is $1600 plus new rods, another $300 to $900. You'll want it balanced, so add another $525 for that. The cases work will be another $900 to $1400 to update to 07 & later cam conversion and Timken bearing. You could easily put $6,000 into that 103" upgrade before adding cams, lifters, oil pump & pushrods, which could be another $2,000. Plus labor (from your questions, it seems clear you don't have the knowledge to do the work yourself) so add 10 plus hours at maybe $150/hour?
For less than $4600 you can purchase a new 103" H-D long Block with matching VIN number. Yea, it won't be a Dark Horse solid build, but it will include the upgraded left crank bearing & much more. And it will still need a cam & tune upgrade.
Seasoned HDF Member
Joined: Jan 2009
Posts: 12,686
Likes: 8,292
From: Ottawa, Ontario
Originally Posted by jdcinak
ok then, that sounds a bit rich for my blood so, if I use my 103 heads and cylinders Ill just have to get new pistons for the stock wheels correct?
Jim
Last edited by roussfam; Jun 1, 2021 at 03:49 PM.
Grand HDF Member
Joined: Sep 2013
Posts: 3,820
Likes: 587
From: Michigan
Thread Starter
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Novice
Joined: May 2021
Posts: 15
Likes: 0
From: alaska
Does anyone have a build list for something like this? Surely someone else has done this build before.
Grand HDF Member
Joined: Sep 2013
Posts: 3,820
Likes: 587
From: Michigan
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Seasoned HDF Member
Joined: Jan 2009
Posts: 12,686
Likes: 8,292
From: Ottawa, Ontario
Sell your 103 Jugs and Pistons, but keep your heads. Call Fuel Moto, get a price on a 98" kit. It will have everything you need, jugs, pistons, cams, gaskets etc. A true all in one package with everything you need and nothing you don't.
At the very least you can talk to them about what options are available for you and price. For example: https://www.fuelmotousa.com/i-231017...-bore-kit.html
Jim
At the very least you can talk to them about what options are available for you and price. For example: https://www.fuelmotousa.com/i-231017...-bore-kit.html
Jim