| Author | Message | ||
     Dammitquikgentry |
Any info would be greatly appreciated     | ||
| Buellistic |
Take them to a HARLEY-DAVIDSON Dealer PARTS MAN and see if he would be nice enough to tell you ... | ||
| Kmbuell |
Those are HD Screamin Eagle High Performance 26 cams. Hugh lift at .536. Drag race guys love them! I've got a buddy in TN looking for them. Check your clearances and springs if you decide to use them or yow will break parts. They are not "bolt in" cams! | ||
| Dammitquikgentry |
Where can I find the specs on these? | ||
| Basti |
Hi Im looking for those so if you thinking about selling them im your man. Thanks | ||
| Buellistic |
Last "i" knew ANDREWS CAMS made the cams for HARLEY-DAVIDSON ... | ||
| Dammitquikgentry |
Kmbuell, any way to find the specs on them? I'm getting my heads done and can't find any info on them anywhere | ||
| Willyboy386 |
http://www.hammerperf.com/xlvalvetrain.shtml#screa mineaglecams Also known as the Screaming Eagle .536. | ||
| Dammitquikgentry |
Curious as you to how you guys know this as I can't find anything where the numbers match?? | ||
| Buellistic |
Those are not PART NUMBERS, "BUT" tool and die "ID's" ... | ||
| Elitemarko |
25-1 29875, 25-2 29669, 25-3 29876, 25-4 29877. Part number of this se 536 kit is 25647-91A. The cams he has are as follows... 25-1 28626, 25-2 28625, 25-3 28627, 25-4 28628. Not only are they different numbers, a guy from another board measured a set of known 536 cams from base to top of lobe and got 1.276. These measure 1.286. It's not a measurement error either. He also says it only has 25- stamps. Kmbuell, all I find for a se 26 cam is for big twin... Andrews have 6 digit cam numbers and they also are marked 25-1 etc. But, aren't stamped with 6 digit numbers like above pics... I have read Andrews made cams for Harley? Andrews says it's Harley number, Harley dealer parts guys say they don't know what they are.... I'm looking for the exact cam set spec list, trying to get these heads done and need to know specs on the cam for clearance issues. Thanks in advance. (Message edited by elitemarko on October 21, 2014) (Message edited by elitemarko on October 21, 2014) | ||
| Dammitquikgentry |
Anybody?? | ||
| Phelan |
The pictured cams have a 5 digit p/n. If they are .010" over .575 cams, could they possibly be Redshift .585s? | ||
| Elitemarko |
i'm not measuring lift. i'm measuring total OD from cam heel to top of lobe. they are .010 over SE .536 cams measured in the same way. Redshift cams don't number their cams in this manner, and have the trademark "dimple" in the face of the cam lobes... | ||
| Dammitquikgentry |
 | ||
| Buelliedan |
those are not the parts numbers. They are SE "high performance" 536 lift cams as others have already said. the SE part number is 25649-01 | ||
| Elitemarko |
Ok buelliedan, then tell me why they are different sizes. Do you see the cam numbers for the kit you just posted? They don't match guy. The 25649 is an update number for the obsolete 25647 kit number. One more time.... The total OD is different. These are .010 taller than the cams your talking about in the 25649-01 kit. Regardless of the part number or tool number or whatever you want to call it. THE CAM DIMENSIONS ARE DIFFERENT. All of this I've already stated above. | ||
| Buelliedan |
I am not going to get into an argument. They are SE 536 cams but they quite possibly could be the ones they used to make for 4 speed Xls which were discontinued years ago. If I could see a pic of the #2 cam showing the big gear side I should be able to tell. (Message edited by buelliedan on October 21, 2014) (Message edited by buelliedan on October 21, 2014) | ||
| Elitemarko |
I'm not trying to argue either, I've been researching this for a while now and all the evidence points to it not being the 536s. Markings, part numbers tool numbers, dimensions, pictures, etc.... A known set measures of 25649 - 91 cams each measure 1.276 using the same caliper in the same fashion. That's why I'm having a hard time with this. If that wasn't the case, this thread wouldn't exist. I'll get a picture of the backsides later. | ||
| Jramsey |
How do you figure that ? (Message edited by Jramsey on October 22, 2014) | ||
| Elitemarko |
That's the case because I'm building his engine. If it was automotive it wouldn't be a problem. It's not. The Harley machine shop guy that is doing the machine work needs to know because apparently he doesn't know what they are. He wants the specs. Sorry to throw another person into the equation.... Stay with me... | ||
| Phelan |
I could be wrong but I believe there are few different sizes for the same '91-'99 cams as there were from the factory, to get a better and quieter fit. | ||
| Screamer |
As others have stated - they are SE 536 "performance" cams. Different generations of fitment applications may have different size base circles. That could account for the different measurements you're seeing. "536" are actually closer to a .517 in. valve lift, duration is 256* intake, and 266* exhaust. I've used them several times but they require fairly accurate set-up to ensure no problems. Everything should be verified if they're used - valve to valve, valve to piston, free travel, coil bind - and they need a good set of springs. I probably have the instructions if you can't locate a set. | ||
| Elitemarko |
Screamer, thanks. This has a 1250 nhrs kit, and the beehive dual springs. Somebody floated the valves and the front exhaust relieve in piston has small spot where valve hit. I just want to be positive before the machine shop starts cutting... Lol. I originally thought they were 536s, but all the info I could find was contradicting what I found originally.. I didn't understand why machine shop couldn't measure them and figure out the head work. I personally do this with cars and semi trucks for a living, just not tooled for little engines yet. | ||
| Alex |
Never judge cams by numbers. They may have been modified or stamped with wrong numbers. Who knows? Get Yourself a degree wheel and a dial indicator and measure the specs You need. May take 30 minutes but then You will know for sure. Thatīs professional. Everything else is just guessing. | ||
| Buellistic |
Alex: Your the man that knows the plan !!! | ||
| Dammitquikgentry |
Still can't get the specs so gonna buy new cams. | ||
| Kmbuell |
Found these specs in an old Battle2Win, volume 4, issue 1, 2000 HD S.E. Hi-Po 26 intake open BTDC 50 intake close ATDC 55 exhaust open BTDC 30 exhaust close ATDC 256 intake duration 265 exhaust duration 56 ? seems off, but that is what it says overlap 102 intake lobe center 103 exhaust lobe center 102.3 lobe separation angle .536 intake lift .536 exhaust lift .211 intake lift TDC .191 exhaust lift TDC -Blank- Don't know if this will help or not. | ||
| Screamer |
Depending on the source, intake duration is 256* or 254*, and exhaust is 266* or 264*. Per the I-sheet; Valve free travel no seal = .700" Valve to valve = .040" (XL or S2 castings) Valve to piston= .080" Depending on the spring kit - you may have contact at retaining (top spring) collar, clearance should be .010"+ The "installed" seat pressure should also be set. | ||
| Buelliedan |
If the heads were my shops (NRHS) work why are you having another shop work on them? | ||
| Phelan |
Dan my guess is the 1250 kit came from NRHS and the headwork was done local. | ||
| Dammitquikgentry |
Went different direction so cams are for sale. Been trying to get ahold of Basti. If I can't get ahold of him make offer. Dammitquik@yahoo thanks |
