Question for Harley experts
 

Is there a difference between shovel rockers and Evo Rockers?
I Own a evo, that is apart. (blah blah blah )
I also own a set of S & S Shovel " Roller Tip Rockers."
Will these fit the Evo box and valve train?
The Evo to me at arms length look the same . The rocker boxes are on my bench.
I have not removed rockers from the box . They look real close to be the same .
Maybe its just shaft size ?
Thanx !

TTT

someone some where must know the answer ....?

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Nope, they are not interchangeable.

Ok, Yes they are,
and maybe they are not, They fit in there purrfect. 100%
So why do you say no?
The only reason I can see, is there is a oil spray hole directed at the valve in the end of the standard issue Harley rocker.
Looking at pix on EBAY, some there have them, others do not.
The forums all know nothing either, like I have stumbled on a lark.
How ever, they all say rollers are very noisy for some unknown reason.

Do a xb head upgrade?

What is XB ?
Different piston and cyl ?

Looks like you are refering to Sporster heads ?
thanx

What I meant was it's not just a matter of dropping them in. They are a different ratio , so I think the pushrod length has to be changed, and you have to put in EVO lifter blocks also. The oil is supplied through the pushrods in an EVO motor.

I guess we are confused.
This is a Evo engine. I have measured up the arms and they are the same except for the oil holes that spray at the valve ( i am guessing )
I can not find a reason why the evo ( 80 inch ) and the old 74 inch will not swap rockers .
( except for the oiling hole which i am addressing right now)
I have to do some test to the direction and how much oil should come out.

OK , got info mixed up. I'm pretty sure you would need the oil hole on the shovel rocker. Also are the pushrod cups on the rockers the same?

shovel is bigger as far as cups, both have holes in cups