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Thanks for the reply pgreer. So I've taken snippets of photographs showing the Cam cover side of S&S, Revtech and Ultima which are clearly different from Harley. These pics may not all be of evo replacements but it does show their style cam cover. Interesting that the Custom cam cover most closely resembles the Harley cover of all of them. Now, I have heard that the patents Harley has on the evo were not very strong or complete which supposedly made copying engine features/parts quite easy. I'm no expert so don't quote me on that, but that is what I saw in my research.
Just comparing the cam covers of all 5 engines here the most similar to harley is the engine in the custom bike.
Ultima .................................................. .................................................. ......................... Harley...................................
Custom Bike engine
The pic on the left is interesting. It appears to have a heat shield... between the case and jugs ? ? ?
Does anyone know of any other manufacturers of aftermarket "crate" non-harly replacement motor besides these.
Last edited by Hardtail83; Jan 9, 2023 at 06:07 PM.
Lots of aftermarket cam covers that look just like the original, but are not of the same quality. So I'm not sure that helps much unless markings that identify the manufacturer are shown. Some of those markings may be on the inside, but the VIN you have leaves a few questions.
Timken is a brand, what you meant to say is that all Evo's have a Taper Roller bearing on the drive side of the crank. They are a very different beast from a Timken inner cam bearing.
I said exactly what I meant to say...
The OP made it clear which bearings he was talking about in his first post.
OP: If your engine is an Evo type engine, it has Tapered Rollers aka Timken bearings on the left side of the crankshaft, just like I said in post #10 (before the nitpicking started).
Last edited by Dan89FLSTC; Jan 10, 2023 at 10:09 AM.
Bottom pic is special build tag on the frame..... and above engine number on front (forward side) engine cases. Stamped twice - one on each case half.
I'm lost. I can't figure out who made this friggen engine! big bummer. The number comes up no where on the web. crazy If anyone wants a Sherlock challenge, I challenge you to find out who made this engine.
The assigned VIN tag means not a Harley frame, or some other likewise issue. The number stamped on both sides of the front of the case means not Harley cases. So, not a Harley-Davidson crate Evo motor. Not necessarily bad, but know what you're buying.
I have no personal Ultima experience. However, if you search the site here, you will find a lot of it. It seems to run: Not as good as an S&S. May work out for you. Ultima stands behind their motors (as in "My Ultima 1xx motor blew up at 1500 miles, I called and they sent me a new one....") Now, if you are not the original purchaser of said Ultima, and/or it is out of warranty, I have no idea what they will do.
For sure, I don't imagine there would be much covering engine warranties for second hand purchasers, especially ones without paperwork like me in this case. As far as the general output quality of Ultima I did find some forum discussion placing them somewhere below the quality of S&S but well above Revtech.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.
The number comes up no where on the web. crazy If anyone wants a Sherlock challenge, I challenge you to find out who made this engine. 
