Some parts too look at (Valvetrain)

[Rhedalert]

cool now if they could just get the description down to 1 page and shrink the pic...o wait

[torq455]

haha!!! that's halarious!!! now, how do we know that will work? and what a locater, the valve seat?

[tejohnson]

haha!!! that's halarious!!! now, how do we know that will work? and what a locater, the valve seat?

A shim with a rise in the ID (to hold the spring from the inside) is a locator (like the brass pieces earlier). A cup is shim with a lip on the OD that holds the spring in....

[SappySE107]

Why would I make something like that up? That is what I have here for the newer heads. Its thicker so its like a .015 shim compared to the copper/brass shim used on the other heads.

[torq455]

I'm not saying you made it up. I was referring to the webpage. I may be missing something, but I didn't see anything saying it was for anything specific. Is it a generic part?

[tejohnson]

ok... Heads are assembled, but there are some things I don't like.

99 Heads, LS1 Shims, LS6 Springs, Stock retainers and keeps, Felpro Viton seals.




Concerns:


Brass locator OD a tad smaller than LS6 spring OD:




Retainer install height:




1 shim on both heads, same location, not fully seating:

[tejohnson]

To clarify... The gap between the shim and the seat is about .022 It would be the exhaust valves on cylinders 1 and 6. The valve stems are also sticking up about .022 beyond the retainer, which is less concerning.

I'm gonna pull both exaust valves again and dremel the inside of the locator to get a flush seat, but I though others may want to know if you encounter 99 heads, or something was up when these valve guides were being pressed into the heads on the line...

[Syn]

lookin good i just got my ls2 springs yesterday, how much did u pay total for ur shims?

[tejohnson]

$19.20 for 12 @ http://www.paceparts.com/index.asp?P...earch=12565118

[Syn]

thanks alot better then the quoted 32

[tejohnson]

Well... Decided to fix the "hanging" shims. Made a little tool to pull the seals back off without damaging them (I'm so proud):




Locators after the dremel job:




On the guide (Before):




On the guide (After):




Spring Installed:

[tejohnson]

Funny... I just viewed my above posts in Internet Explorer and my posts above look like crap.

Looks just fine in Mozilla... That's what I get for using HTML in my posts...

[tejohnson]

Digging up an aged thread. While starting on my heads to clean them up for selling, I noticed something that irritated me a tad:




Notice anything odd? The seals that I installed are the felpro "viton" seals (SS72685). Exhaust - 70819 (left)
Intake - 93734 (right)




Here is a bit of a closer pic:



Below are pics of the intake and exhaust guides:
Valve guide OD - .512
Valve stem OD - .312
Measurements for above is for both intake and exhaust. Notice the "step" in the guides. Perhaps these are not 99 heads? I did send them off long ago for P&P, maybe I got a set to 2000+ back?





Pic of an exhaust seal that cam off the guide, spring still on. No way did the springs move to "lift" the seal off the guide. Only 1 exhaust seal did not come off, and all the intake seals were just fine.



If they really are 99 heads, given the valve guide OD on both intake and exhaust being the same, why the different seals for intake and exhaust?

[3400-95-Modified]

Well it looks like you bought old 3.1 mpfi seals, and I don't know of those heads have the same stem diameter but if the seals are different aparently not. I used Dodge seals on my 05 3500 and didn't have any issues. The two intake exhaust stems are the same diameter as each other 99 or 2000+ they are just different sizes between the years. I'm not sure which set of seals should be used on 99 and older heads.

[Superdave]

Well it looks like you bought old 3.1 mpfi seals, and I don't know of those heads have the same stem diameter but if the seals are different aparently not. I used Dodge seals on my 05 3500 and didn't have any issues. The two intake exhaust stems are the same diameter as each other 99 or 2000+ they are just different sizes between the years. I'm not sure which set of seals should be used on 99 and older heads.

iirc 99 and older heads can use the 3.1 MPFI seals, 00+ heads need the 2.2 cavy seals or the Dodge seals i guess...