Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

stock rocker ratio

Thread Tools
 
Search this Thread
 
Old 11-10-2009, 04:55 PM
  #1  
Teching In
Thread Starter
 
zflewbyu's Avatar
 
Join Date: May 2007
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Default stock rocker ratio

whats the stock rocker ratio on an ls1? thanks
Old 11-10-2009, 05:03 PM
  #2  
LS1Tech Premium Sponsor
iTrader: (5)
 
Sales2@Texas-speed's Avatar
 
Join Date: Jan 2008
Location: Texas!
Posts: 5,053
Likes: 0
Received 4 Likes on 4 Posts

Default

Stock is a 1.7:1 rocker ratio
__________________


Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!

COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Old 11-10-2009, 05:04 PM
  #3  
Teching In
Thread Starter
 
zflewbyu's Avatar
 
Join Date: May 2007
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Default

Was also wondering if going to a diff ratio would be a good idea car has a tick polluter cam 242-244 612-610 112 lsa rest of the motor is stock would it be ok with a higher lift?
Old 11-10-2009, 05:09 PM
  #4  
LS1Tech Premium Sponsor
iTrader: (5)
 
Sales2@Texas-speed's Avatar
 
Join Date: Jan 2008
Location: Texas!
Posts: 5,053
Likes: 0
Received 4 Likes on 4 Posts

Default

If you're running stock heads, I'd stick to the 1.7's. Your heads really don't flow better up there at almost .650" lift than they do at .612", so you wouldn't see any major difference in power. I'd run the stock rockers or maybe have them modified with the Comp trunion upgrade kit to give them a bit longer and more reliable life
__________________


Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!

COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Old 11-10-2009, 05:13 PM
  #5  
TECH Fanatic
iTrader: (1)
 
02*C5's Avatar
 
Join Date: Apr 2009
Location: Az
Posts: 1,706
Received 297 Likes on 209 Posts

Default

Most off the shelf cams are set to run with a rocker ratio of 1.7 so going to a 1.8 is not a good idea. Also take into consideration how much more lift you are going to end up with.

Bigger rocker ration is just a bad idea all the way around if you are not setting up your engine and valve-train for it from the get. (MY opinion)

The best thing you can do is get an trunion upgrade like mentioned above and you will be good.




All times are GMT -5. The time now is 09:18 AM.