anybody running a high hp setup with an Ls6 rocker
#1
Drifting
Thread Starter
anybody running a high hp setup with an Ls6 rocker
When I say high hp,I mean 600 to 1,000rwhp,I have a set on my c5 & look to keep them on ,also my cars @ a dyno shop waiting for paxton to complete the rebuild on the novi 2k,cars an auto should make somewhere between 7 & 800 rwhp
#2
Burning Brakes
Member Since: Jun 2007
Location: Stockton California
Posts: 804
Likes: 0
Received 0 Likes
on
0 Posts
I have been using the LS6 rockers on my blown 383 without any problems. It has over 750 hp.
#7
Drifting
Thread Starter
The reason I said high hp is because most /not all, but the majority of high hp cars put on aftermarket rockers,Not stock Ls1 /Ls6 rockers,so there's your relevance/I am totally aware. Of geometry on the Ls motor ,your pushrod length plays a vital role in the correct geomtery,I asked the question in reference to the needle bearings taking the revs comapred to a yella or any other aftermarket rocker for that matter/the Ls motor is hands down 1 of, if not the easiset to set up rockers
Last edited by fsuforever; 12-17-2010 at 01:24 PM.
#8
Team Owner
#10
Tech Contributor
The reason I said high hp is because most /not all, but the majority of high hp cars put on aftermarket rockers,Not stock Ls1 /Ls6 rockers,so there's your relevance/I am totally aware. Of geometry on the Ls motor ,your pushrod length plays a vital role in the correct geomtery,I asked the question in reference to the needle bearings taking the revs comapred to a yella or any other aftermarket rocker for that matter/the Ls motor is hands down 1 of, if not the easiset to set up rockers
#11
Former Vendor
Member Since: Apr 2006
Location: Portland OR
Posts: 2,470
Likes: 0
Received 1 Like
on
1 Post
St. Jude Donor '10-'11-'12
^^ I dont know ? I just rebuilt some new LS3 ones (brand new off the shelf from SDPC) and they looked the same to me. The bearings are trapped together by the caps. They cam apart the same way ?
#12
Team Owner
I like this thread and the fact that they offer rebuild kits
Unfortunetaly on aftermarket heads like mine - TFS or AFR heads you need to run aftermarket RR's due to geometry - I talked directly to TFS and I now know why
Thanks,Matt
Unfortunetaly on aftermarket heads like mine - TFS or AFR heads you need to run aftermarket RR's due to geometry - I talked directly to TFS and I now know why
Thanks,Matt
#13
Drifting
Thread Starter
So what u just said is if I go out & buy a 7.35 puhrod & I need a 7.4,this won't thow off the geomtry ,I totally disagree & it has everything to do with the geomentry,yes it plays a role in preload for lifters ,its not like I have to shim them,its 22ftlbs with a pushrodlength checker,so ur gonna go buy a set of pushrods. & u would be guessing @ it ,if u didn't measure the length with a pushrodlength checkerur in the dark guessing @ it!! if they are to long or to short then u just said that's ok run them U CANNOT GUESS @ UR LEngth U will have a screwed up wipe,we don't guess @ stuff like this in the south & we do get the correct geometry/btw I am running a stock Ls6 rocker & an aftermarket cam /Lq9 ironblock that required me to shorten the length of my pushrod to a 7.35,not the 7.4 ,also I know several guys running stock blocks that run 7.1 pushrods,there cam lobe plays a role in this as well as spring height/this also goes back to the original question about the revs on the needle bearings & if there up for the task with 16lbs of boost @high rpms
Last edited by fsuforever; 12-18-2010 at 03:44 PM.
#14
Team Owner
So what u just said is if I go out & buy a 7.35 puhrod & I need a 7.4,this won't thow off the geomtry ,I totally disagree & it has everything to do with the geomentry,yes it plays a role in preload for lifters ,its not like I have to shim them,its 22ftlbs with a pushrodlength checker,so ur gonna go buy a set of pushrods. & u would be guessing @ it ,if u didn't measure the length with a pushrodlength checkerur in the dark guessing @ it!! if they are to long or to short then u just said that's ok run them U CANNOT GUESS @ UR LEngth U will have a screwed up wipe,we don't guess @ stuff like this in the south & we do get the correct geometry/btw I am running a stock Ls6 rocker & an aftermarket cam /Lq9 ironblock that required me to shorten the length of my pushrod to a 7.35,not the 7.4 ,also I know several guys running stock blocks that run 7.1 pushrods,there cam lobe plays a role in this as well/this also goes back to the original question about the revs on the needle bearings & if there up for the task with 16lbs of boost @high rpms
As for you other question, GM upgraded the bearings later in the production run so you can either go with new stock (don't have the part number) or press in the Comp bearings.
#15
Drifting
Thread Starter
So ur saying gm upgraded the needle bearings?,well that's cool ,I did not know that,I was just concerned about the Ls6 rockers seeing the high revs & lasting that's the only reason I posted this ,I have z06 rockers off of an 02 ,they have 50k on them, what I'm saying about the length of rod is that u just can't assume ,its not a 1 size fits all deal,if ur short on pushrod where is ur rocker gonna be sitting ? In the middle of the valve ?I highly doubt it so ya the lenght of the rod doess play a rolei,If u go shave 50 thousands of your heads do u think ur gonna have the same geomtry u did before u shaved the head? No ur gonna have to get the correct length rod! U cannot put the stock rod back in the hole after shaving the heads 50,60,70, thousands,it just ain't gonna happen, if u don't have the right length pushrod ur gonna have issues with it,which u can agree or not,which is perfectly fine with me ,I won't lose sleep over it trust me!
Last edited by fsuforever; 12-18-2010 at 02:19 PM.
#17
Drifting
Thread Starter
So based on the 01-04 bearings the newer. Rockers were suppose to be an upgrade,maybe they just added more needle beaarings to it,did u count them?its all good ,just wanted to see how many guys are having sucsess with using the stockers
#18
Tech Contributor
There is a thread covering this. EricD, who is a GM engineer, posted pics of the old and new design.
#19
Team Owner
Yes you will because shaving the heads doesn't reposition the rocker stand but it does make the rocker closer to the lifter, where a shorter pushrod would then be used to adjust the difference if its required. There are two ways to change the geometry, one is to raise and lower the rocker and two is to change the total lift. That's why when you installed a cam with more lift you need to adjust geometry.