Spring mod thread

[Ricky21]

So after slowly getting everything together over winter that I need for a solid 3.4 setup, Im going to begin tearing apart the top half and doing gaskets and cleaning everything up nice. I already have ss headers and open cone.

Parts waiting to go on
3.4 zzp mps
Aluminum LIM gasket
GM S/C gasket
Felpro valve cover gaskets w/ gromets
Coolant O-rings
Injector O-rings
Autolite 104 plugs
180 tstat
S/C oil

Parts to pick up
S/C belt
TB gasket
Oil/filter change
Coolant change
DHP canned tune (unless I can find a local custom)
Coolant elbow(s) is there only one on 02 Gtps?

Also going to do a self port job on my blower and have a machine shop port my TB. What should I have it ported to? I was thinking just having the MAF hump removed, would that be best for my setup? And what adhesive should I use for the LIM? this is my first time going this far into the motor so im sure il be coming to you all for other questions and suggestions. I will also try to take as many pics as possible as I go. Is there anything else I should add to the list while everything is apart?

[Bio248]

be aware, the machine shop is going to break through the casting in your throttle body. make sure you add to the outside of the casting before you start porting with some aluminum epoxy.

[matt5112]

I think i'm going to get another 3.4 as well.....

[copperpacecar]

be aware, the machine shop is going to break through the casting in your throttle body. make sure you add to the outside of the casting before you start porting with some aluminum epoxy.

when i did mine is just let it cut through and later put a piece of tape on the inside of the throttlebody and dumped epoxy on the outside of the throttle body then when it dried removed the tape.

[Bio248]

yeah, but having done it once, wouldnt you think itd be easier to build up on the outside before you start porting so you wouldnt have to worry about it? at least i think it would be..

[BillBoost37]

Personally... screw porting the TB.. ain't worthwhile.

[Bio248]

pretty much.

[Ricky21]

Im about to order the last few things I need..
Does anyone know if I need one or two coolant elbows for an 02 gtp? I searched around the engine and could only find one.
Also is this what I use for the LIM?
https://www.zzperformance.com/grand_...=429&catid=103

If there is anything else I should do while im in there let me know it would be appreciated

[Bio248]

the second one is on the bottom side of the tensioner bracket. you need two.

[matt5112]

That should work.

Most of the time the LIM gasket kits come with black RTV though.

[Ricky21]

Thanks for the quick responses!! Mine didnt come with any

[matt5112]

Which one did you get? GM?

[Ricky21]

ZZ Performance

[matt5112]

IIRC RTV would be a felpro only thing.

[Ricky21]

So I dont need to RTV this one? It wont hurt to do it anyway just to be on the safe side right? lol

[matt5112]

use rtv.

a dab in each corner where the main pieces meet the end caps.

[L36pro]

the only + i see to porting the TB is throttle response.

[Ricky21]

I got it all done besides the pulley and tune once thats in il throw up all the pics I have.
Im pretty sure im in need of injectors. does the ones zzp sell for like 130 come in a set of 6? or where is the best place to get them?

[matt5112]

They sell six for that price.

If you'd want to take the car further i'd suggest some 42.5's.

[Ricky21]

Next year I might go IC or might just do rockers but probly not to much farther than that. would 42.5's be overkill on just a 3.4 setup