sjsingle1

iTrader: (1)

has anybody ever made a jig to drill LS1 blocks without holes for the timing dampener ? seems like such a easy jig to make so those of us without can put LS1 chain dampeners in

TrendSetter

this? https://www.michiganmotorsports.com/...mper-dampener/

sjsingle1

iTrader: (1)

if i am correct...that is for the LS3 slipper type chain dampener

RB04Av

I just laid one on my block (LQ9), center-punched through its holes, and drilled & tapped. Pretty straightforward.

It was one like this. Not this specific one I don't think; certainly not this seller or source. But, like it.


If you look closely you'll note it's not symmetrical.

sjsingle1

iTrader: (1)

is that a LS1 or LS2 dampener ?

I believe its a LS2 which is incompatible with LS1 blocks ?

RB04Av

Which? Mine?

It's the LS2 one. Totally "compatible". All ya gotta do is, drill & tap the 2 holes. Piece o cake.

There's also one on a large plate that goes under 2 of the cam retainer plate screws, but some people report having some kind of trouble with it, not sure the details.

RonSSNova

iTrader: (3)

ICT Billet makes one.
I have one, used it for a few different blocks.

sjsingle1

iTrader: (1)

i believe the problem with the LS2 style in the LS1 is not enough meat on the front of the block to accommodate the holes as the hole location is different

sjsingle1

iTrader: (1)

https://www.summitracing.com/parts/i...yABEgI47fD_BwE

looks to be a LS2 style rather than LS1 ...can you confirm which it is?

sjsingle1

iTrader: (1)

just so everyone knows....the LS1 dampener is GM 88958607....which is NLA from GM ....aftermarket has stepped up with RDE 62188 which can be found on ebay or from michigan motorsports ....the LS2 dampener is GM 12626407...the GM LS1 is tan in color...RDE is red....LS2 is black

RonSSNova

iTrader: (3)

This is not true. As I said, ICT billet makes a drill fixture. I’ve drilled several blocks with it. Works fine.

sjsingle1

iTrader: (1)

the reason I said that ....I found on the interwebs a pic comparing the hole locations of both dampeners....it was clear to see that the LS1 block was iffy on using the LS2 style....cant find that pic now ....do you have pics of your setup?? ?

and ICT states that the jig is specifically for ,,,,

• ONLY compatable with Gen III LS Iron Blocks (LM7, LR4, LQ4, L59, LQ9)

so to confirm....you have used this jig to mount a LS2 style on LS1 alum block ?

RonSSNova

iTrader: (3)

Yes. I don’t have photos though.
The holes drilled end up on edge of the pads, but I didn’t see that being an issue.
The block was from a 2000 Camaro.

sjsingle1

iTrader: (1)

ok got it....from the input on this thread....LS2 dampener will fit with the jig....and no one makes a LS1 jig for LS1 dampeners