LS1TECH - Camaro and Firebird Forum Discussion

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

5.3L heads

Thread Tools
 
Search this Thread
 
Old 10-12-2007, 03:34 PM
  #1  
TECH Fanatic
Thread Starter
iTrader: (9)
 
TchargedLS1TA's Avatar
 
Join Date: Jan 2003
Location: Temple, TX
Posts: 1,648
Likes: 0
Received 1 Like on 1 Post

Default 5.3L heads
Anyone know the max lift cam for 5.3L heads on a stock bottom end and stock GM MLS gasket?
Could you increase the lift based on valve timing events- I.E. have big lift before the piston reached TDC??
TchargedLS1TA is offline  
Reply Like
Old 10-12-2007, 04:19 PM
  #2  
TECH Regular
iTrader: (1)
 
98RedZone's Avatar
 
Join Date: Oct 2003
Location: Bloomington, MN
Posts: 424
Likes: 0
Received 0 Likes on 0 Posts

Default
Lift has nothing to do with PTV clearance. Unless you are talking about the limit of the valvespring, which case is stock cam lift at best.
98RedZone is offline  
Reply Like
Old 10-12-2007, 04:21 PM
  #3  
12 Second Club
iTrader: (116)
 
BIG_MIKE2005's Avatar
 
Join Date: Jun 2005
Location: Skiatook, OK
Posts: 5,222
Received 1 Like on 1 Post

Default
I'm running a .581 lift cam with my 5.3 heads milled .018" & FelPro stock LS1 replacement gaskets. No issues.
BIG_MIKE2005 is offline  
Reply Like
Old 10-12-2007, 04:24 PM
  #4  
TECH Fanatic
Thread Starter
iTrader: (9)
 
TchargedLS1TA's Avatar
 
Join Date: Jan 2003
Location: Temple, TX
Posts: 1,648
Likes: 0
Received 1 Like on 1 Post

Default
I am talking about PTV clearances...
I guess let me re-phrase into a newbie type question-
What is the biggest cam you can run with this setup, duration/lift wise...?
Last edited by TchargedLS1TA; 10-12-2007 at 04:35 PM.
TchargedLS1TA is offline  
Reply Like
Tags
Back to Subforum
Generation III Internal Engine
View Next Unread
Anyone ever hear a "cricket" noise from up in the valvetrain?




Advanced Search

All times are GMT -5. The time now is 06:17 PM.