Major Mods going in need advice & help

[317indy]

1. Do SSM heads come with 105lbs springs?
2. With a cam with 206/212 .313/.325 114 how much power will be made with SSM heads.
3. Can I run a 1.7 rocker arm set?
4. How much HP can be seen with SSM heads?
5. What kind of times should I see with SLP intake, RKSport headers, 3" cat, 2.5 catback, camshaft as above, SSM heads, 4.10 gears, and a 100 shot of nitrous ;) ?


Thanks.

had to edit number 5. I forgot the nitrous. [img]graemlins/evilgrin.gif[/img]

[ February 11, 2004: Message edited by: 317indy ]</p>

[Nachius]

The only question I'm going to answer is 3, as I don't want to "guess" on the others.

If you get 1.7 rockers I would get something better than 105 springs 1.7 rockers are gonna raise your lift to .5321/.5525 which is quite a bit of lift. I would say don't waste the money on the rockers, but thats my opinion.

[John_D.]

<blockquote>quote:</font><hr>Originally posted by 317indy:
1. Do SSM heads come with 105lbs springs?
<hr></blockquote>

The heads you got have CompCams 26915 springs.

According to the CompCams catalog, they are 313 spring rate, and 105 lbs at 1.80 inches, going to 293 lbs at 1.20 inches.

http://www.compcams.com/Technical/Ca...ML/340-349.asp
...scroll down a page or two, it's on the left side.

[Bird_Of_Prey]

Depends if the heads were milled to accept the higher lifts. I'm not sure SSM does that on all heads.

[Nachius]

I believe SSM with mill the head if it is requested, but if not I don't believe they do. So if you didn't order the heads you have directly check with who did to see what lift they will support!

[John_D.]

This set of heads are supposed to support .50x inches of lift.

I was looking at a cam with .507 lift and Tom said it would be fine.

Here is Tom's email address:
tyentzer@bellsouth.net

[John_D.]

.313 * 1.7 = .532
.325 * 1.7 = .553
Looks like too much cam with the 1.7.

Even with a 1.6 ratio:
.313 * 1.6 = .501
.325 * 1.6 = .520

You should doublecheck with Tom on that .520 and see what you need to do there.

[John_D.]

Ok here's another thought for you. This came from a neighboring thread.

http://www.camarov6.com/cgi-bin/ulti...&f=16&t=002220
<blockquote>quote:</font><hr>
You can also use ZZP's special valve stem seals and modified retainers, you can go up to .560 lift without milling.
I asked Zoomer about this a few days ago and that's what he said.
<hr></blockquote>

[ February 11, 2004: Message edited by: John_D. ]</p>

[317indy]

I thought all SSM heads came milled?! :(

[Bird_Of_Prey]

.530 is the biggest you can go on a stock head. The cam you have selected with 1.6 rockers will work great.

[John_D.]

<blockquote>quote:</font><hr>Originally posted by 317indy:
I thought all SSM heads came milled?! :( <hr></blockquote>

I believe Bird_Of_Prey was referring to having the valve pedestals milled, to keep from crushing the valve seals with higher lift.

Most shops will mill the head surface a minumum of .005 if needed to make it perfectly flat. Or more, for higher compression.

[John_D.]

<blockquote>quote:</font><hr>Originally posted by Bird_Of_Prey:
.530 is the biggest you can go on a stock head. The cam you have selected with 1.6 rockers will work great.<hr></blockquote>

Is that true for aftermarket beehive style springs too? (he has these on those heads)

I have an email from Tom saying .50x lift on these heads and springs. He's the guy who put them together... Maybe he is just being conservative?

[WickEdSix9838]

<blockquote>quote:</font><hr> quote:
--------------------------------------------------------------------------------
Originally posted by Bird_Of_Prey:
.530 is the biggest you can go on a stock head. The cam you have selected with 1.6 rockers will work great.
--------------------------------------------------------------------------------

Is that true for aftermarket beehive style springs too? (he has these on those heads)

I have an email from Tom saying .50x lift on these heads and springs. He's the guy who put them together... Maybe he is just being conservative?

<hr></blockquote>
if i remember right the comp 28915's can handle .600 lift just like the 26918's....

[ February 11, 2004: Message edited by: WickEdSix9838 ]</p>

[Bird_Of_Prey]

It's not the spring,it's the installed pedestal height. My cam has .523 lift and I have all stock heads and valvetrain components with ZERO issues.

[317indy]

Tonight I got the heads. UPS fucxed up the box MAJORLY! Im really pissed about that. Halk of the box was missing. :mad: The heads for some reason where painted orange. They didnt appear to be P&P but thats probably because of all the carbon build up on them. Im going to go and have them hot-tanked tommarow. [img]graemlins/thumbsup.gif[/img] Hopefully that will help them and restore the P&P look. I also will look into getting them re-P&P :eek: [img]graemlins/evilgrin.gif[/img] A double P&P and 3angle valve job couldnt hurt could it?

Anyone want to take a stab at what kind of power I should make? Also what kind of times I will possibly run once everything is tunned and running. [img]graemlins/evilgrin.gif[/img] [img]graemlins/omg.gif[/img]