I just got my set of .551 cams (E), and I am preparing for the swap. In a hope to avoid the pain of removing my heads (yeah, I'm lazy and cheap), I double-checked my parts manual cams; after all, the .551s *are* bolt-in, right?! :laugh Uh oh, parts manual lists a new part number for '06!

So, I trudge on down to my local stealership, where they promptly tell me that they don't have any rocker cover gaskets... no swap tonight! However, when I inquired about the part number change, we checked their parts manual, only to discover that it contained the 2000-revision of the W cams. Which is it?!?!

My parts manual is the A-revision, and theirs was the first revision; was it a late change, or a misprint in the original parts manual? What's the difference in the cams? Has anyone replaced the cams on their '06 model, yet?

Ultimately, I guess I'm going to have to just buy a full top-end gasket set, and run through a proper check of my valve-to-piston clearances. I really didn't want to have to take my heads off, right now! Alas, I will see my pistons soon. :doh

I have the S.E cams in my 06. It's the same "w" grind that is used in the Buells. I think they Q.C the cams with the tighter tolerances going to the Buell production engine and the others packaged as S.E bolt ins. Maybe that is why they are a little noisy in the XL's. Not to worry tho, I don't think they are as noisy as some might lead you to believe IMHO.This is one of the few things I did not install myself. The bike had to have the cases split at 1800 miles due to a loose compensator. I can tell you I bought them on E-bay in 05. There was only one part #. Handed them to the service guy and asked will you install these instead. No problems or they probably would of not done it. Turbota installed these once. He is out of the Country until 6-1. Good pull from 2500-6500 rpm. They really come to life at 3,800 rpm up to redline. There wasn't any lose in bottom end power. I compared the numbers and these are basicly Andrews N-4's. I hope that was some help.

DB, I remember your bike getting the full overhaul; it happened pretty soon after my hub nut backed off. I'm glad to see that they worked out alright for you, because I suspect that means that they bolted right in there. Do you know if the stealership re-used your original pushrods, or did you ask for adjustable rods?

BTW, you got one heck of a deal with that service... just thought you should know. :D

The stock pushrods are fine. I was thinking of the beehive springs at the time. The mechanic there only works on Buells and sportsters. Told me it was not nescessary. He was right

Those "E" cams are bolt in. Just remove the rockers to relieve pressure on the lifters.

[QUOTE=dodgenbullets] I compared the numbers and these are basicly Andrews N-4's.


Correct me if I'm wrong but the "E" cams are nowhere close to being basicly the same as N4's. N4"s are every close to the Screamin Eagle Bolt Ins not the "E". See the comparison chart I have attached for a listing of various cams used in our bikes.

By the way I currently run the "E"s in my 1200 conversion. Just had it dynoed and will post results as soon as I can.

7052

Okay... the point of this thread is that my parts manual shows stock cams as HD# 25193-06 (883) and 25194-06 (1200). Those part number signify that the gear set was introduced in 2006. What changed? Does anyone know?

Jimbo, I couldn't get the link to open. I'll trust that your right on that. Now, there are a few changes to the 06 that are not very apperant. I will try and find the box my cams came in for the part#. I am willing to bet that they go right in. I know, it's your bike and you got to be certain. The part# on the cams I used was the only part# at the time. There are two people I can think of that may be able to give you an answer. Aaron over at NHRS and probably turbota.

I have the S.E cams in my 06. It's the same "w" grind that is used in the Buells.

did u mean "E" grind? the "W" is the stock cam and also right next to "E" on the keyboard...

W= 223/240 - .476"/.476"
E= 249/249 - .551"/.551"

'W' is the stock cam, the SE bolt-ins are another animal again and then you have the 'E' grind. Three different cams. The Andrews N4's are pretty much the same as the SE bolt-ins.

As to '06 differences, no idea, but unless the cam box is different and the oil pump is different, then cams for earlier motors should fit. Check your parts manual and see if the part numbers for the cam cover, gasket, oil pump have -06 suffixes.

Cheers,

Brett

Well, I'm still wondering about the different part number; however, I took a chance... lol, and just bolted 'em in. My engine didn't blow up last night, on a 400+ mile ride, so I'd say I'm good to go.

Have a few pics...

Complete bike, sans exhaust and seat.
http://lynk.us/pnwriders/valvis_05.jpg

No rocker boxes or gear cover.
http://lynk.us/pnwriders/valvis_04.jpg

Remove all the gears, and this is what you see.
http://lynk.us/pnwriders/valvis_02.jpg

Comparison of cam lobes. (Note that the new cams have a fatter and taller lobe)
http://lynk.us/pnwriders/valvis_03.jpg

Mike hows the valve train noise since you installed the .551's?

*clatter* *clatter*

Ron had a good description... idle sounds like an old Singer!

'W' is the stock cam, the SE bolt-ins are another animal again and then you have the 'E' grind.

The pre-'04 bolt-in cam set were the .497" lift. The '04-later bolt-in cam set is .551" lift, and labeled "SE#E," or commonly referred to as "E"-cams.

Glad to see they went in alright for you. Are they really that loud ? Funny, I was almost talked out of these cams due to the noise. You can hear them. but not bad at all.

The pre-'04 bolt-in cam set were the .497" lift. The '04-later bolt-in cam set is .551" lift, and labeled "SE#E," or commonly referred to as "E"-cams.

I have heard that the .497 still bolts into the '04-later.
So, for '04-later we have Bolt-In, Big 'E' Bolt-In, what about the N8, Big Torque Bolt-In? :laugh