Matts94Z28

iTrader: (6)

This chain HAS to be worn out pretty bad. The car had an MS4 in it for a good while, i found this when I put my SSHT in the block this morning. Guess I need to order a new chain.

http://www.youtube.com/watch?v=3VoyDHZ-N-k

Old Geezer

iTrader: (3)

The chain in the 15K 6.0 I have just taken down,[Bone stock], has significant slack.. Similar to yours, maybe not as much. Enuf to warrant a new chain, tho.
I'm wondering if these engines need a mod to put more lube onto the chain, or if the chain quality goes along w/ the other "cheapo" items??

1badWS6

iTrader: (32)

Yeah there is supposed to be a little bit of slack on the chain. I don't think there is supposed to be that much though. That is a little too much.

wicknewman

iTrader: (13)

You should at least pick up an LS2 chain from Scoggin Dickey as a replacement.

http://www.sdparts.com/product/12586...mingChain.aspx

Nicer chain than the stock LS1 and is very affordable. Depending on your needs SDPC also has chains for more demanding builds as well.

Rickenbackerman

iTrader: (1)

I just installed an LS2 chain along with my SS-HT last night, and the NEW chain has almost as much slack as the one in the vid above... not sure what to do yet.

5.3LJimmy

iTrader: (10)

There is supposed to be a fair amount of slack due to the fact that aluminum expands quite a bit when it gets hot. It kind of sucks that the iron blocks are stuck using the same chain, but that's how GM did it.

And what is a SSHT?

Matts94Z28

iTrader: (6)

Installed a Cloyes LS2 chain just now, still sorta slack, but nothing like it was. It was probably a wise $30 bucks on my end. BTW, SSHT is the Street Sweeper High Torque grind from flowtech.

Red99TA

iTrader: (11)

For how cheap a new LS2 chain is I don't see why anyone wouldn't throw a new one on there while the cam is out. I reused the crank gear, put on a new modified (adjustable) GM cam gear with a new LS2 chain and I thought it had quite a bit of slack but not quite as much as your video shows.

Using the CTE of aluminum with a 200 deg F rise (being conservative) shows an expansion of about 0.0027" per inch of the block. I can't remember how far above the crank gear the cam sits but if it's 6" then there's 0.016" of growth total where the cam moves further away from the crank theoretically. This doesn't sound like much but it will take some slack out of the chain.

Matts94Z28

iTrader: (6)

Thanks! One of the best answers I have gotten out of this place lately. Most guys would say "A big gosh dern cam el do that to ya".