1st Build advice
not all parts play nice so seat of the pants can be iffy.
you can get custom p/r and covers but make sure you have the measurement right. nothing wrong with adjustable, all that i run.
2. I would contact Fuel Moto, a sponsor here and discuss various options. https://www.fuelmotousa.com/
3. Might be cheaper and more reliable to buy a crate engine from S&S depending on your needs and wants. https://www.sscycle.com/search/?category=1%7CEngines
4. May want to consider what else will need to be upgraded, clutch, compensator, etc. as you go down the rabbit hole.
5. If you have the tools, knowledge and equipment - go for it.
NOTE:
The above information, while credible, is worth what you paid for it and should not be considered gospel.
Do due diligence, research and have a H-D Field Service Manual before working on your bike.
You will probably have many opinions and suggestions presented; make sure you research the person providing the helpful information as there are some who provide good information that is useful and some who speak out of other orifices with gibberish. You will figure out this quickly.
This is after careful consideration of what your riding style might be.
Good luck with the build and let us know what direction you decide on.
1. Get the service manual for your bike and understand "special tools" or work arounds for certain tasks. Read the appropriated sections to understand the work steps.
2. Either of the shops recommended can provide the necessary machine work, pistons with rings gapped for a 98" configuration. Send them your cylinders to bore and fit pistons to send back to you.
3. The cam chest upgrade to hydro tensioners/roller chains is certainly an option but the OEM cam plate and oil pump is more than adequate for the application. The inner and outer cam bearings should be replaced as well as the tensioners which can be replaced with a set of CYCO tensioners. Just a matter of where the OP wants to spend money.
4. Forget the Woods TW6 cam; discuss cam selection with whichever shop is selected.
5.Replace the lifters with a set from WFO Larry, AKA Larry's Machine
6. Adjustable push rods most likely will be required as well as the correct tubes to make adjusting push rods easier. S&S is the popular choice; I have had good luck with the HD Quick Install Tapered push rods which come with tubes, clips and o-rings.
7. Seriously consider head work; discuss with the selected shop. JMHO but spending on head work makes more sense, to me, than the cam chest upgrade to the S&S kit.
The OP did not mention intake and exhaust, both are important to achieved the 100HP goal. 100HP can be achieved with a 98" motor; mine makes 115TQ/115HP.
Last edited by CoolBreeze3646; Mar 1, 2024 at 11:50 AM.
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Last edited by djl; Mar 1, 2024 at 07:13 PM.
The Best of Harley-Davidson for Lifelong Riders
And ignition.. From the other post.
You will need a better set of heads (ported), a programmable ignition and air cleaner. CR set to 10.3-5 to 1 It will be easier with a mikuni carb.












