When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have a 02 coupe and I was talking with a friend who has a 01 Berger Stage 2 Camaro. He stated that if you have a LS1 Block that there is a circle imprinted on the block right behind the water pump. He has this on his car and my other friend who has a 98 coupe has the same marking. Mine does not, does this mean I have a LS6 block? I was under the impression only the ZO6 had the LS6. I know I have the LS6 intake but I thought that was it. Any comments would be appreciated. :confused:
Ok, I have a LS6 block does that make my motor technically an LS6 or just a LS1 with LS6 parts? Does anyone have the differences between the two. I know this may sound silly but I was going to get some LS1 badging for the motor when I came up with that question, I just want to be correct if I badge it. :confused:
Is that block drilled and tapped for the chain tensioner?
No, just some of the early blocks were drilled. I heard they used it in '97 because of problems with the timing chain that was later fixed and its use was discontinued.
FYI they will not work with some or all double roller chains.
I have a new one I will sell if anyone wants it.
The LS6 also has a different heads and cam. I would say it is an LS1 unless you have the whole package on a stock engine. LS1/ 350 HP. LS6/ 405 HP.
The LS6 block has some improvements but no real power gain. As a result it is cheaper for GM to build 1 aluminum block for LS1/LS6 engines. The LS6 motors do have different heads and cam.
Thats interesting, as the 12561168 block I just got from valvegod has a couple drilled and tapped holes above the crank on the front of the block, I assumed they were for the tensioner.
The GMPP catalog says the following
88958607 Timing Chain Damper, LS1, LS6
This timing chain damper is intended for high engine speed applications and is used to improve timing chain life. Some blocks require drilling and taping - an instruction sheet is included.
Seems like a good idea if you are going to use a stock type chain.
Just for kicks, below is a pic of a C5R shortblock that a forum member sent me last year during his build-up. You can see what looks like a timing chain damper behind the oil pump. Must be using those mounting holes mentioned.