2.8 rocker arms???

[JaredMcCombs]

I have a 2.8 L out of a camero in my car and i want to put a higher ratio rocker arm in it to get a little extra lift. I was told that the small block chevy rockers will bolt on. i have a set of 1.6 ratio roller rockers from a smallblock that i want to put on if possible. Any idea?

does anybody know what ratio of the stock rockers are?

[Doubt_Incarnate]

the stock ratio is 1.5, or 1.52. if you have the sbc rockers on hand, you can just slap them on and check to see if everything fits. i know jegs and i think summit sell roller tipped rockers, and full roller rockers for the 2.8

[sharkey]

yes its possible. pretty well just blot them on and go.

[mickaz]

and what about the perfomance gains? and what does rollers rockers do?

[Doubt_Incarnate]

roller rockers just reduce friction, thats lets a barely, if at all, noticeablr amout of power out. if you have more agressive mods, it probably makes a difference. but again not much. if your going max effort, you want every little bit, i got them because its one of tyhe few things actually out there.

uping the ratio will net a few hp. but then its an easy way to do it. mods work best with each other, by themselves they dont shine as bright.

[v6h.o.]

you will have to retain your stock pivot ball and nuts if you go with SBC stuff. As our rocker arms have a M10 stud with metric threads.

SBC stuff is all 3/8ths and standard threads.

Or you can just buy Comp Cams' 1.6:1 ratio Magnum Roller tip rocker arms that are made for the 60v6.
pn: 1414-12 for 1.6:1

(1.52:1 roller tips are 1413-12)


If you are putting on 1.6:1 ratio rockers, You WILL need new springs to take the extra lift.

[geoffinbc]

And you must buy new spring retainers because all the aftermarket and GM springs use a taller install height.

[Doubt_Incarnate]

i found out the hard way than the iron heads components dont interchange with the aluminum heads, thicker valve stems and stuff. you can get quite a bit of cool stuff for iron heads, crane has retainers and locks, and everything else cam related.