3100 heads, what should i do to em

[3100rettaracer]

ok i just bought some 3100 heads, non roller rocker.
i am obviously gonna prot & polish them, but what else???

[StudlyCamaro]

bigger valves.. ? never a bad idea.. mill em.. , not much else you can do

[ikessky]

Add roller rockers......

[jweir22]

Do the heads have a slot milled out for roller rockers?

[3100rettaracer]

no clue
i havnt recived them yet.
should i do diff srings? and rocker arms??

[XLR8ING]

Polish the valves or get the SI valves, do a 3 angle grind, LS1 springs and retainers, notch the heads to accept the GM roller rockers from the 96+ 3100 heads, plane them for a little more comp, and get them ported as much as you can afford. If you're not experienced in porting, get them done by a professional.....it's expensive, but worth it.
Good Luck!

[ikessky]

I thought I read somewhere that a 3 angle grind won't help on these heads.........

[1QUICKHATCH]

I thought I read somewhere that a 3 angle grind won't help on these heads.........

no it won't help cause the valve job that they have allready is all you need.

[XLR8ING]

Hmm...never heard that before. All I know is I have it done to my 3.1 MPFI heads, and the set of 3400 turbo heads I just sent out have it done as well. THe seats were too thin to do 5 angle though.