3400 valve seat removal

[loner666]

As is says, How do you remove the '03 3400 valve spring seats? i need them off so i can resize and install the comp cam shims so i can get my LS6 spring installed this weekend. Any help would be great. normally id figure this out myself but i dont wanna mess these up

[MidnightriderZ24]

should have just gotten some comp cams shims, theyre cheap and fit..
heat up the aluminum around the seat and use a press, thats the easiest way. to get them back in without breaking a sweat, put the new seats in a freezer over night, and then heat the head around the hole for the seat, then just drop the seat in and itll make a perfect interference fit.

[Superdave]

to remove the old seal, just grab on with pliars and pull it straight off...

[loner666]

sorry..they are the comp cams shims..i was in a hurry and didnt pay attention to what i was typing..thanks for the tips..any other way will be good to if anyone has any

[loner666]

ok..i got them done..hopefully there right but before i put them back on the engine lemme check.

remove STOCK seals and seats
Install comp cam shim (new seats?) this is the only part im insure of
Crysler 318 seals
LS6 springs with stock locks and retainers

[3400-95-Modified]

should have just gotten some comp cams shims, theyre cheap and fit..
heat up the aluminum around the seat and use a press, thats the easiest way. to get them back in without breaking a sweat, put the new seats in a freezer over night, and then heat the head around the hole for the seat, then just drop the seat in and itll make a perfect interference fit.

this is an 03+ motor, IIRC they dont fit without modification... But then again I could be wrong since there is not thread showing you what ones fit with no problems and what ones dont fit and what years... there are like 6 threads you need to read through to kind of understand it.

[loner666]

i did and couldnt come up with much..but the shims fit with no problem at all and so did the seals..ill get some pics in a bit..i just need to know if there done right (seat wise)

[gectek]

they do make seats now that work also, instead of the shims, they are the ls series seats from comp, pn 4705-12, they arent on the comp site for some reason, but you can go to www.sdpc2000.com enter the number and they show as 31.99 for them, they locate the spring and are a .060 shim in the process, IIRC, and they fit with no mod, ill be putting them on soon

[AaronGTR]

Just to be clear, he's talking about valve spring seats, not valve seats right? Might confuse some people.

[loner666]

to bad i didnt know that sooner..i dont feel like buying more stuff and tearing these things apart again and havingt to wait longer to put it in the car

[gectek]

to bad i didnt know that sooner..i dont feel like buying more stuff and tearing these things apart again and havingt to wait longer to put it in the car

understandable, sorry, ill post them up in the springs on an 01+ 3400 for future reference

[3400-95-Modified]

Yes he is referring to spring seats...

I dont think anyone in their right mind would try to change valve seats themselves...

[gectek]

Yes he is referring to spring seats...

I dont think anyone in their right mind would try to change valve seats themselves...

well look at the forum you are posting this in...im a proud member...lol

[loner666]

i feel really dumb know..i did mean spring seats..i guess thats another thing i forgot when i was typing that in a hurry..ill go fix that now

and no problem gectek..if the shims will work just fine then ill install the heads today but if youd recommend the another ones then i guess i can order them and wait but i really dont want too

[Superdave]

the '91 2.2L Exhaust seals will fit your heads fine. I installed them on a pair of 2002 3400 heads and a pair of 2004 3500 heads. I highly reccomend them. I'm also using the .015" copper Comp Cams shims on the 3500 heads.


I've heard of too many people having problems with the 318 seals. I prefer my cars not to smoke.