Is LS2 timing chain the way to go with H/C upgrade?
06-21-2010, 10:15 PM
#1
Staging Lane
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Is LS2 timing chain the way to go with H/C upgrade? In the process of installing a set of AFR's 205 and custom ground LSM cam..
I have read that the LS2 timing chain is much better than the stock LS1 timing chain.. Any insight or GM part numbers?? Also, I am planning on using
LS7 lifters... Anything special I need to know before I order them?? Thanks..
I have read that the LS2 timing chain is much better than the stock LS1 timing chain.. Any insight or GM part numbers?? Also, I am planning on using
LS7 lifters... Anything special I need to know before I order them?? Thanks..
06-21-2010, 10:32 PM
#2
Yes it is the way to go. Don't listen to the double roller nonsense that people start throwing around.
LS1tech tool - "Hey, my buddy broke an LS2 chain on a cam only setup. Double roller is the only thing you should ever run"
Real Answer - Hey, your "buddy" is a moron. Try having your engine balanced properly so it doesn't destroy itself.
LS1tech tool - "Hey, my buddy broke an LS2 chain on a cam only setup. Double roller is the only thing you should ever run"
Real Answer - Hey, your "buddy" is a moron. Try having your engine balanced properly so it doesn't destroy itself.
06-21-2010, 10:36 PM
#3
I would say that most people dont need a double roller unless you are spinning it past 6800 ish or unless you are planning on an engine with 600+ RWHP... but it doesnt hurt to have one...
and LS2 chain will do just fine for most people...
personally I prefer the double to have peace of mind... you arent going to lose any noticeable horsepower from the double chain vs an ls2 chain... and double rollers come in adjustable varieties where the ls2 chain does not.
06-22-2010, 01:08 AM
#6
I wouldnt call it nonsense....
I would say that most people dont need a double roller unless you are spinning it past 6800 ish or unless you are planning on an engine with 600+ RWHP... but it doesnt hurt to have one...
and LS2 chain will do just fine for most people...
personally I prefer the double to have peace of mind... you arent going to lose any noticeable horsepower from the double chain vs an ls2 chain... and double rollers come in adjustable varieties where the ls2 chain does not.
I would say that most people dont need a double roller unless you are spinning it past 6800 ish or unless you are planning on an engine with 600+ RWHP... but it doesnt hurt to have one...
and LS2 chain will do just fine for most people...
personally I prefer the double to have peace of mind... you arent going to lose any noticeable horsepower from the double chain vs an ls2 chain... and double rollers come in adjustable varieties where the ls2 chain does not.
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06-22-2010, 08:54 AM
#11
Horsepower DOES NOT kill timing chains, harmonics do. Plenty of guys here spinning to 6800 or even 7k using a "factory style" single. LS2 or Katech C5R. Run a good balancer and use a timing chain damper.
FWIW, I run LS2 chains on almost every build a do. The key is keeping your chain from slapping around all over the place inside the cover. IE: Harmonics.
06-22-2010, 10:57 AM
#12
+1000 on using the LS2 timing chain & a damper. Only (cheap) damper available now is the LS2 which may require modification depending on whether or not your block is pr-tapped for the older version. It's not a big deal to mod the damper & if you're lucky the block may not be tapped & you can simply mark the locations & add the holes to the block. There is also an LS3 damper available now that could be used & is more expensive.
06-22-2010, 09:35 PM
#14
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Great insight, thanks guys.... So, on a 01' LS1 what damper should i use?? I always prefer "overkill" when it comes to the valvetrain.. Car is not a DD and will be thrashed on religously.. What is the best chain/damper combo for a mild street car (420hp range plus a 150 shot)??... I run Jesel belt drives on my 507 and 540 BBC, but they cost about 1k.. Would like to stay with LS2 or LS3 setup if possible and recomended for my application..
06-23-2010, 04:02 AM
#15
TECH Senior Member
06-23-2010, 01:31 PM
#17
Great insight, thanks guys.... So, on a 01' LS1 what damper should i use?? I always prefer "overkill" when it comes to the valvetrain.. Car is not a DD and will be thrashed on religously.. What is the best chain/damper combo for a mild street car (420hp range plus a 150 shot)??... I run Jesel belt drives on my 507 and 540 BBC, but they cost about 1k.. Would like to stay with LS2 or LS3 setup if possible and recomended for my application..
On your block, I'd go LS2 & modify as noted in my earlier post. Read the LS3 link that joecar posted regarding the LS3. Article claims that it won't work on pre-04 blocks, but, I'd bet there's a way. Regardless, seems as though the modified LS2 is your answer. I have modified an LS2 (black) dampener in an 00 block to match the holes; again as described above.
