1998 Evo with 96 in. kit
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,081
Likes: 2,159
From: Ohio
If it is stocked cased it can be good or can be bad, good is it has a S&S flywheel and if the cases held up it is good. Bad is cases crack because the cylinder spigot bore is thin, the 98 cases are good ones but wasn't intended for this set up but can live. If it is a 96" S&S cased engine then it is a good set up unless the engine was abused, if you trust the seller then it is good but sure would like to see some receipts.
Grand HDF Member
Joined: Nov 2009
Posts: 4,315
Likes: 1,663
From: Tampa
How much? Price can dictate a lot when it comes to bikes like this. Often times the seller thinks the bike should sell for retail PLUS the dollar-for-dollar value of all mods added up, which is total bullshit. 25 cents on the dollar is lucky to get.
Also, I don't know of a single HD dealership that does case boring so I'm skeptical of his backstory.
Also, I don't know of a single HD dealership that does case boring so I'm skeptical of his backstory.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,139
Likes: 7,653
From: Poolville
I've had that exact setup with the cylinders and pistons. It's pretty solid. but you're limited to what the flat top piston can produce compression wise. I believe it was 9.5-6:1 static. with an 83 cc head. The biggest issue is, was it balanced?. Hopefully S&S did a good job with their kit... As for the cases, that shouldn't be an issue. If you want more compression then you'll have to go with smaller combustion chambers cause no one except Axtell makes hi comp pistons for that setup which are the 30* pistons and that requires a lot of work that I don't think is worth it... Been there done that.... Best used as a touring motor which the Road Glide is.. Depending on miles and condition could be a very good setup, if tuned properly... An 89"er is probably the most reliable build in the evo platform...Pic's and prices?
Elite HDF Member
Joined: Oct 2005
Posts: 3,872
Likes: 83
From: Canton, Michigan
I've always heard that an 89" stroker should be the max for stock HD cases. But I really know nothing about it. It would be of interest to see what all was done, and by whom.
Off topic: With the cost of complete drop in engines versus building one, I'd probably just move on to that. But I'm perfectly pleased with the performance of my slightly warmed over 80" EVO. If it ever does 'blow up', I can see a new S&S engine being swapped in.
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,081
Likes: 2,159
From: Ohio
Spoke to Axtell on spigot bore and they said a late model Evo case can handle their big bore cylinders with the 4 5/8 flywheel making the 106" I'm not going to buy into it but they most likely see some of them.
Road Captain
Joined: Oct 2017
Posts: 546
Likes: 54
From: Toronto
I've always heard that an 89" stroker should be the max for stock HD cases. But I really know nothing about it. It would be of interest to see what all was done, and by whom.
Off topic: With the cost of complete drop in engines versus building one, I'd probably just move on to that. But I'm perfectly pleased with the performance of my slightly warmed over 80" EVO. If it ever does 'blow up', I can see a new S&S engine being swapped in.
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Elite HDF Member
Joined: Oct 2005
Posts: 3,872
Likes: 83
From: Canton, Michigan
EV27 cam, SE air cleaner, Dyna ignition, 'street ported' heads, Thunderheader, and a tuned CV carb.
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Grand HDF Member
Joined: Nov 2009
Posts: 4,315
Likes: 1,663
From: Tampa
Now keeping the pistons cool enough from scuffing the cylinder walls on highway cruising is another debacle all together...
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,081
Likes: 2,159
From: Ohio
It's true. You have to bore the case spigot hole out to 4.010" but it technically fits. That's what I did, although I used an S&S crankcase instead of that cheese-cast Harley crankcase.
Now keeping the pistons cool enough from scuffing the cylinder walls on highway cruising is another debacle all together...
Now keeping the pistons cool enough from scuffing the cylinder walls on highway cruising is another debacle all together...
Was the cylinders Axtell?