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

biggest cams with no ptv issues

Thread Tools
 
Search this Thread
 
Old 02-12-2008, 10:20 AM
  #1  
12 Second Club
Thread Starter
iTrader: (3)
 
THEBRAD's Avatar
 
Join Date: Jan 2006
Location: NEWARK OHIO
Posts: 439
Likes: 0
Received 0 Likes on 0 Posts

Default biggest cams with no ptv issues

what r the bigest cams (highest lift, most duration on a 112 lsa) u guys have stuck in ur f bodies with 241 heads without cutting the pistons or addind thicker gaskets or any of that crap just stickin it in and going. these can be street cars or drag cars just interested in what the motors can take before there are clearence issues
Old 02-12-2008, 10:24 AM
  #2  
TECH Fanatic
 
landonew's Avatar
 
Join Date: Nov 2004
Location: Tuscaloosa, AL.
Posts: 1,251
Likes: 0
Received 0 Likes on 0 Posts
Default

+1, would also like to know this. W/ AFR 205s assuming .03 cometic.
Old 02-12-2008, 10:45 AM
  #3  
11 Second Club
iTrader: (1)
 
sciff5's Avatar
 
Join Date: Jan 2006
Posts: 1,308
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by THEBRAD
what r the bigest cams (highest lift, most duration on a 112 lsa) u guys have stuck in ur f bodies with 241 heads without cutting the pistons or addind thicker gaskets or any of that crap just stickin it in and going. these can be street cars or drag cars just interested in what the motors can take before there are clearence issues
TREX and MS4 are good examples. Chumma created a custom cam for a guy on here that fit without flycutting and its bigger than both the Ms4 or the TREX. Its like 245/250.
Old 02-12-2008, 10:46 AM
  #4  
TECH Fanatic
iTrader: (12)
 
TheLS1Kid's Avatar
 
Join Date: Oct 2006
Location: Orlando, FL
Posts: 1,724
Likes: 0
Received 0 Likes on 0 Posts

Default

+1 for T-rex and MS4.

If I'm not mistaking I think they were both designed to be used with stock heads with no flycutting.
Old 02-12-2008, 11:14 AM
  #5  
11 Second Club
iTrader: (14)
 
Camaro396's Avatar
 
Join Date: Oct 2005
Location: Toledo, Oh
Posts: 5,091
Likes: 0
Received 7 Likes on 7 Posts

Default

I have 241s with the MS4
Old 02-12-2008, 12:34 PM
  #6  
12 Second Club
iTrader: (5)
 
ws6_bandit's Avatar
 
Join Date: Jan 2007
Location: St. Louis, Missouri
Posts: 176
Likes: 0
Received 0 Likes on 0 Posts

Default

G5X4 is up there.. it will fit without flycutting.
Old 02-12-2008, 01:35 PM
  #7  
TECH Fanatic
iTrader: (7)
 
moeZ28's Avatar
 
Join Date: Dec 2003
Location: ashland, ky
Posts: 1,022
Likes: 0
Received 1 Like on 1 Post

Default

TREX V2 is about as big as you can go with stock heads, and have an effective power band. TREX was designed to be used with stock heads and does very well, but its also excellent with ported heads if you ever decide to do a head swap.
Old 02-12-2008, 01:41 PM
  #8  
LS1Tech Sponsor
iTrader: (9)
 
Rob@EFIAlchemy's Avatar
 
Join Date: Aug 2005
Location: Ponte Vedra Beach Fl
Posts: 639
Likes: 0
Received 0 Likes on 0 Posts
Default

im running a 234/240 .627 .641 112lsa with 853 heads that were milled .010 for trueing with no flycutting
Old 02-12-2008, 02:26 PM
  #9  
12 Second Club
Thread Starter
iTrader: (3)
 
THEBRAD's Avatar
 
Join Date: Jan 2006
Location: NEWARK OHIO
Posts: 439
Likes: 0
Received 0 Likes on 0 Posts

Default

that, is a good amount of lift. thanks guys
Old 02-12-2008, 02:55 PM
  #10  
11 Second Club
iTrader: (2)
 
CobraB8_ZO6's Avatar
 
Join Date: Aug 2007
Posts: 211
Received 0 Likes on 0 Posts

Default

Will the T-Rex work with stock 243 heads?
Old 02-12-2008, 08:30 PM
  #11  
On The Tree
iTrader: (10)
 
418redz28's Avatar
 
Join Date: Nov 2007
Location: sw mo
Posts: 189
Likes: 0
Received 0 Likes on 0 Posts
Default

i dont think so i think that the valves are just a lil bigger then the 241 heads.
Old 02-12-2008, 11:35 PM
  #12  
TECH Enthusiast
iTrader: (47)
 
BigKap94z's Avatar
 
Join Date: Apr 2005
Posts: 721
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by CobraB8_ZO6
Will the T-Rex work with stock 243 heads?
It should fit the stock unmilled 243's just the same as 853's and 241s. The valve size is the same, chamber size is smaller but that won't affect the PtoV clearance. Pretty much all these cams listed clear, but most don't clear by safe margins. Honestly I don't understand the big cam craze around here.
Old 02-13-2008, 06:04 PM
  #13  
12 Second Club
Thread Starter
iTrader: (3)
 
THEBRAD's Avatar
 
Join Date: Jan 2006
Location: NEWARK OHIO
Posts: 439
Likes: 0
Received 0 Likes on 0 Posts

Default

i never said i wanted one and neither did anyone else on this thread i simply stated in the first post i wanted to know just to know, for the technical stand point.
Old 02-13-2008, 06:36 PM
  #14  
TECH Fanatic
iTrader: (34)
 
sevanseriesta's Avatar
 
Join Date: Sep 2003
Location: Gardner, KS
Posts: 1,293
Likes: 0
Received 1 Like on 1 Post
Default

244/248 .612/.615 @ 114+2 stock 346 although this is with 317 heads, I am in the process of changing heads though
Old 02-13-2008, 09:47 PM
  #15  
TECH Resident
iTrader: (28)
 
santiago's Avatar
 
Join Date: Sep 2004
Location: norcal
Posts: 987
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by CobraB8_ZO6
Will the T-Rex work with stock 243 heads?
yes it will i ran this set up hard till i bought my 408.
Old 02-14-2008, 10:16 AM
  #16  
TECH Addict
iTrader: (6)
 
The Dragon's Avatar
 
Join Date: Nov 2001
Location: Tampa, Florida
Posts: 2,099
Likes: 0
Received 0 Likes on 0 Posts

Cool

Originally Posted by BigKap94z
. . . I don't understand the big cam craze around here.
For those with confusion akin to BigKap94z here is an answer: then you too can walk away from a 510 hp 2007 Lamborghini Gallardo Spyder on the highway

My very good friend bought one new 4 months ago and I walk him N A S T Y every week we roll (on motor BTW)

With the proper combination of parts and proper driving, a good big-cam/heads set-up can be devastating
Old 07-19-2008, 12:37 AM
  #17  
11 Second Club
iTrader: (107)
 
tnmotown's Avatar
 
Join Date: Aug 2007
Location: Cali
Posts: 1,455
Received 22 Likes on 14 Posts

Default

i know this is kinda a old topic but, will the G5x4 clear stock ls6 heads?
Old 07-19-2008, 04:14 AM
  #18  
TECH Resident
iTrader: (11)
 
LS1C5Vette's Avatar
 
Join Date: Jan 2007
Location: Oklahoma City
Posts: 836
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by tnmotown
i know this is kinda a old topic but, will the G5x4 clear stock ls6 heads?
Yes (unmilled heads stock mls gasket)
Old 07-19-2008, 11:49 AM
  #19  
Staging Lane
 
MasterMindMotorsport's Avatar
 
Join Date: Nov 2007
Location: S. Michigan
Posts: 84
Likes: 0
Received 0 Likes on 0 Posts
Default

I have ran an MS4 in a stock long block with 241's and 243's and on a stock 07 LS2 also with 243's with no issues to date



Quick Reply: biggest cams with no ptv issues



All times are GMT -5. The time now is 11:56 AM.