Dragaholic

iTrader: (180)

As many of you already know, I'm swapping over to a LS2 in my 2000 Camaro SS and was wondering if the rear cover has to be changed out as well? I'm trying to get everything gathered up for the build. So far, this is what I've come up with as far as what's needed for the LS2 block:

Timing cover (front cover)
Timing chain
Cam sensor
Valley cover
Lifter trays

If there's anything else that I'm lacking, please let me know. Thanks.

DrkPhx

iTrader: (15)

The stock LS1 rear cover works fine but you need a new gasket and seal. Tip: Oil pan to rear cover alignment is critical to prevent leaks. I used the GM manual and LS1 specific tools to align them. But other use the transmission bellhousing as a guide which seems to work.

Beast96Z

iTrader: (21)

Yep, the good ole bellhousing works every time.

jhong321

if it's a 402 you will need to put washers in your windage tray so the crankbolts will clear. oh and the knock sensors relocator wires.
Good luck on your motor

Beast96Z

iTrader: (21)

You pretty much have to do that on any stroked LSX engine.

KJ

iTrader: (1)

You might double check me on this but I think the LS2 block uses a different bolt to hold the rear cover on. I believe it's the same one as used in the side of the main caps. GM part # 125596127. The LS1/LS6 blocks use #11515758. I have them in stock if you need them.

Dragaholic

iTrader: (180)

Could you double check and let me know so I know whether or not to buy the rear cover? I'd greatly appreciate it. It'll be a LS2 block going in a 2000 Camaro SS. Thanks.

gojo

iTrader: (12)

If you go to an LS2 block these are the LS2 parts you will need. The remaining LS1 parts work.
Lifter retainers
Valley cover
Timing chain cover
Timing chain and gear
Timing chain dampener
Cam sensor and electrical connector
Tap block for LS1 knock sensors
Plug PCV outlets on rear of each valve cover(2)
Run PCV lines per LS6
LS2 head bolts

Randy WS6

iTrader: (69)

whats the part# for the (timing chain damper)?
here are the Part numbers for what you need ,that i have number for:
LS2 valley cover # 12570471
LS2 timing chain cover # 12596023
LS2 lifter trays # 12595365
LS2 head (ARP) stud kit from Thunder Racing #113-234-4317
LS2 bare block #12568950
and you (can) use the LS1 rear cover on the LS2 block

gojo

iTrader: (12)

Dampener #012588670
I show for the timing chain cover #012576266

Orange Peel

iTrader: (20)

What's the timing chain dampener?? Cam sprocket?

Randy WS6

iTrader: (69)

I was told that the number that i have is for the cover and csm senser and gaskit and front seal its a (kit) judt what i was told

Randy WS6

iTrader: (69)

is that for the LS2 block and timing chain ??

Beast96Z

iTrader: (21)

I'm not sure if that particular one is intended for the LS-1, but it does look as if it would bolt in the location of the GM dampner. LS-1 blocks came with the holes for the dampner, but did not actually have the dampner on them. I'm not sure if the LS-2 block has the same provisions or not.

gojo

iTrader: (12)

http://www.moreperformanceinc.com/im...S7/LS7-043.jpg

It's the plastic piece. One cause of chains breaking is that they can "whip" around under certain conditions. The dampener is supposed to help avoid that. Some LS1 blocks had the holes but if not they can be drilled and tapped. I believe the bosses are there. LS2 blocks come with dampeners.

Orange Peel

iTrader: (20)

Is this dampner really neccessary?

KJ

iTrader: (1)

It's not a big deal if you don't use it but it's only $9.95 at SDPC. 12588670 is the correct # for the LS2 damper.

Orange Peel

iTrader: (20)

With it being metal, and lets say the chain has a little play, and it rubs, won't it cause a little more valvetrain noise?? I don't know how this LS2 dampener works, so forgive my retardedness

DrkPhx

iTrader: (15)

I have both the LS1 and LS2 timing chain dampeners and they are both plastic. They are also not interchangeable because the bolt hole patterns are slightly different between the LS1 and LS2 blocks. The LS2 dampener is black, and the LS1 dampener is light brown in color.

The dampener is bolted directly to the block and fits perfectly between the camshaft sprocket and crankshaft sprocket. If you saw a picture (try the search button here) it would make total sense. All LS2 blocks have threaded holes for the dampener in the block from the factory.

gojo

iTrader: (12)

Here's one on an LS7 block.
http://www.moreperformanceinc.com/im...S7/LS7-043.jpg