.530 Cam Lift Question

[fbn ent]

Stock heads....can I install a .530 lift without being concerned with valve spring coil bind?

[04rkryder]

Not with stock 02 heads, you'll need to replace the springs with some beehive springs.

[fbn ent]

  I had to go back and make sure I posted in the right place....this is the EVO board....heads are '94  EVO.

[Caper]

I seem to remember that .500 or .510 was as high as you could go in a bolt in cam...

[pumpguy68]

  .500. .510 is pushing it

[04rkryder]

Sorry about that, my bad. Still need beehive or high performance springs for that lift.

[fbn ent]

   :doh:Crap! Anyone want to buy a V-Thunder 3050 cheap? (In Canada)

[lasmittys1]

 It has more to do with cam lobe hitting the case, and valve guide hitting the top retainer then coil bind.

[Caper]

V-Thunder/Comp Cams recommend spring change when they go over .500 lift...

http://www.vthunder.com/catalog/cams.pdf

And this is from the Harley SE catalog...

NOTE: 1340 Cams over .510" lift may require case and/or
tappet guide machining for cam lobe clearance. '84-'85
model's pistons may need to be fly-cut to obtain proper
clearance. Please refer to instruction sheets and service
manuals for more detail.

[fbn ent]

Yep...bought the wrong one .

[Ohio HD]

Agree on the factory springs. They need upgraded over 0.510". I've installed some tall lift cams and not have to modify the cases for lobe clearance. 99.9% of the time the cam manufacturer reduces the cam base circle to allow clearance in the case.   

[moosemush]

Isn't the 3050 a .510" lift cam?   

[fbn ent]

You are correct...I seem to be losin' me freakin' mind lately. It's a 3030.

[jamercier]

keep your stock spring and cut your guide about 3/16 and will be ok

[mtkawboy]

I run that cam in my 95 Fatboy but I have a set of Mackie heads on it that are cut .050 & set up for up to a 550 lift cam. The motor is stock outside of that except for a Supertrapp 2-1 , Sportster module and a little carb work. The bike runs real good