I have an 08 Ultra that I'm starting a SE 103 build next week. I'm using CP flat topped pistons w/ 10.5:1 CR, stock heads with machining to accept 1.9: intake and 1.65 exhaust valves with some additional porting, Woods TH7H cams and high lift springs (cam = 0.575 lift), and manual compression releases. TTS Mastertune, Big sucker AC, V&H MO's, true dual head pipes. I know the true dual head pipes may be going a little backwards on the tq, but I should have a little extra with this build, and I like the way they look. I know the cam and stronger springs are going to be noisier than stock heads, but don't have a relevant comparison. My question is: Should I install roller rockers with this set up? My mechanic says he's right on the fence with it for this build, and could go either way. It's another $500 though. I'll spend it if I need it, but don't want to if I don't have to. Any comments?

 

Its more or less a matter of opinion, so heres mine, save your cash, they are not needed and are noisier than a stock style rocker arm.

 

roller rocker arms are only needed when going over 600 lift cam so i would say save your money

 

Thanks guys. I had heard over 0.550 and/or 0.600, and was just looking for a little input.
I'm on the road for a couple of days,but will check in mid week to see if there's more input. I would actually appreciate any input on this build, as it starts on Wednesday.

 

I have a 7H and S&S roller rockers. There is tapping noise at the top in some RPM's that won't go away nomatter what I do.
Really bothers me, though I don't thing it hurts anything. Maybe.
Better upgrade the clutch, at least the spring. I put in the SE clutch pak and spring, the 120 torque one. I can really crush beer cans with my left hand now.

 

noise associated with a woods cam...get outta here.

 

Thanks guys. I am upgrading the clutch spring, I just didn't have it listed. The work begins tomorrow; I'll post my impressions afterwards.

 

That 1.65 ex valve seems like overkill.

 

roller rocker wont hurt,but their not a must.one question though,how are you getting 10.5-1 with flat tops & stock heads?

 

I love the noise the rockers and springs make... Engine makes a lot of noise and it's badass