LazerBlue07SS

Well i am glad to see that the LS2 IM is going to be a little cheaper and easier to use for this swap. Although with having to have to runners on the LS2 IM ported, it may even out the cost - and still be a little cheaper than the LS6 IM, and having to get injector spacers, injector wiring adaptors, having to have the alternator bracket cut, ect...

But i am a little curious about having to use the two nuts as the spacers on this set-up, and i am curious to know details of what needs to be done with the valley tray when deleting/removing the DOD during this swap. I may see about doing the OPSU mod still at the top of the valley tray, as i kinda like having that easy to get to from the top. And since the tray will have to be rewelded anyway, why not - unless space/room does not permit it to stay there...

My other questions are about doing the intake swap first, then the exhaust, with a re-tune in between. I have found fairly recently that with the gains in HP & TQ between everything, that it would be better and safer to do the trans first, to handle and be sure to withstand the power. Would it be safe in doing the intake swap now with a stock trans, or would I be better of waiting, gathering and working on all the parts - exhaust and intake in the meantime - and doing the trans first? I know that i am looking at some serious coin to do all of this ($3k for a stage 2 TEP trans, $1100 for the ZZP DP & Magnaflow kit, lets say about $600 for the IM, with porting, price of a re-tune...), so I would like to know what and where would be the best and first place to start...

Thanks all!

xxtheshockerxx

I can confirm an ls2 tb working on a 2007 also.

rkhodges21

Did anyone ever confirm that the FAST 102 fits better with an electric PS pump out of the way of the intake, or do you still have a good bit of modification to do to the IM to make it fit in that configuration?

spawne32

iTrader: (2)

any of the fast manifolds are going to be hard to fit with the power steering still in place, they have humps on the back end that are otherwise made exclusively for forward mounted manifolds.

rkhodges21

I understand that, but with the pump relocated, does it make the job any easier?

spawne32

iTrader: (2)

yeh you have full clearance on the back side there by the belt for any of the manifolds once the pump is removed. I do think you need to modify the water vapor line though.

IMPALAZL108

Damn....wish there was a LS6 ready to bolt on for sale...

Mike The Canadian

The valley tray I got is slightly different.
Restrictor built in.

The shop is cutting to before the oil feed and going to do a 90 degree bend using additional aluminum that way I can re-use the stock pcv fitting on my manifold.

Can I hack up the opsu filter (file it smaller) so I can insert it from the bottom of the tray before I put the gasket in? Anyone see any issues?

Thanks,

Mike

91parkave

iTrader: (4)

I haven't used a filter since I did my swap 35k ago no problems. Your valley traylt is no diffrent restrictors are not built in..

Mike The Canadian

Hmm.. is this tray missing something or maybe I'm looking at it differently?
I was just going off of the vid you posted on youtube a while back.

I'm pretty excited to get the swap done and the compilation of info here is helpful.
Just need to get my alt bracket off, finish tapping the manifold for the MAP + brake booster and I should be good to go.

91parkave

iTrader: (4)

This is the thread you should look at
https://ls1tech.com/forums/ls4-perfo...ley-cover.html

Mike The Canadian

Thanks man - I've got my spare off of a G8 so it looks like I'm in good shape!

Mike The Canadian

So the valley tray gasket is falling apart - as such I need to order a new one.

I thought this would be easy because there's a gm pt# on it.
I can not find this part # for the life of me and can only find the perimeter gasket. Does anyone have any feedback or luck finding this?

Pic attached.

Thanks,

Mike

spawne32

iTrader: (2)

Fel-pro ms96871

Mike The Canadian

Thank you thank you sir.

Where do those o-rings go?

Guess I need to take a closer look at what I have.

spawne32

iTrader: (2)

not sure exactly, i believe its part of the DoD system. I believe the gasket is mounted to new actuators. It's the only way you can buy that gasket with the center portion, otherwise your stuck using the LS3 valley tray.

Mike The Canadian

Hmm,

I'm not sure that gasket will even work? Mine is like the one pictured here:

http://i173.photobucket.com/albums/w...pswqo5qzpq.jpg

Can't find this anywhere (I've got a G8 DOD tray).

edit -for clarity I can find the perimeter but nothing for the inside portion..

spawne32

iTrader: (2)

Hmmm not sure, didnt realize you had a G8 DOD tray, the interchange for the PN i posted is listed as...

BUICK ALLURE (2008 - 2009)
BUICK LACROSSE (2008 - 2009)
BUICK RAINIER (2005 - 2007)
CHEVROLET AVALANCHE (2007 - 2011)
CHEVROLET IMPALA (2006 - 2009)
CHEVROLET MONTE CARLO (2006 - 2007)
CHEVROLET SILVERADO 1500 (2007 - 2011)
CHEVROLET SUBURBAN 1500 (2007 - 2011)
CHEVROLET TAHOE (2007 - 2011)
CHEVROLET TRAILBLAZER (2005 - 2008)
GMC ENVOY (2005 - 2009)
GMC SIERRA 1500 (2007 - 2011)
GMC YUKON (2007 - 2011)
GMC YUKON XL 1500 (2007 - 2011)
ISUZU ASCENDER (2005 - 2006)
PONTIAC GRAND PRIX (2005 - 2008)
SAAB 9-7X (2005 - 2009)

Mike The Canadian

I hope I'm not screwed - I've already had the tray modified and can only find the perimiter gasket for this tray anywhere..

http://www.rockauto.com/catalog/more...id=1074&jpid=1

91parkave

iTrader: (4)

Gm service manual procedure has you cut the perimeter of the stock gasket to use another if needed. If your concerned use a little copper rtv in the areas of concern