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

G5x3& heads???

Thread Tools
 
Search this Thread
 
Old Aug 12, 2004 | 10:04 PM
  #1  
fastsspr's Avatar
Thread Starter
TECH Fanatic
20 Year Member
iTrader: (49)
 
Joined: Oct 2003
Posts: 1,313
Likes: 10
From: Las Vegas NV
Question G5x3& heads???

Today i keep out the heads of an spare motor that i plans to build,to send them to my shop and make some nice porting job.Now my question is directed to the g5x3 users.How much is the risk of hit a piston to valve if i use 2.02 and 1.60 with the g5x3 with 114?I really like that cam but i'm so worry about that issue!!
Please i apresiate any sugestions
Reply
Old Aug 12, 2004 | 11:08 PM
  #2  
flynbludream's Avatar
Launching!
iTrader: (1)
 
Joined: Jan 2002
Posts: 271
Likes: 0
From: Albuquerque
Default

If you don't mill the heads you should be fine with a 114 LSA.
Reply
Old Aug 13, 2004 | 12:02 AM
  #3  
fastsspr's Avatar
Thread Starter
TECH Fanatic
20 Year Member
iTrader: (49)
 
Joined: Oct 2003
Posts: 1,313
Likes: 10
From: Las Vegas NV
Default

i going to be fine even with the bigger valves? 2.02 1.60??
Reply
Old Aug 13, 2004 | 12:16 AM
  #4  
jermstyle's Avatar
12 Second Club
 
Joined: Sep 2003
Posts: 634
Likes: 1
From: Houston
Default

X3 Cam = Doesn't fit anything but stock heads...

j/k... but it doesn't like large valves.
Reply
Old Aug 13, 2004 | 08:46 AM
  #5  
Kenny D's Avatar
TECH Resident
 
Joined: Apr 2004
Posts: 870
Likes: 0
From: SugarLand Texas
Default

Originally Posted by fastsspr
i going to be fine even with the bigger valves? 2.02 1.60??
Dont think so. Thats why i had to sell my G5x3. There was not enough p/v clearance. maybe .6 thousands
Reply
Old Aug 13, 2004 | 09:44 AM
  #6  
KGSloan's Avatar
TECH Resident
 
Joined: Apr 2003
Posts: 791
Likes: 0
From: Tulsa, Ok
Default

why not just flycut the pistons while the head are off?

nothing to worry about then.
Reply
Old Aug 14, 2004 | 12:15 AM
  #7  
fastsspr's Avatar
Thread Starter
TECH Fanatic
20 Year Member
iTrader: (49)
 
Joined: Oct 2003
Posts: 1,313
Likes: 10
From: Las Vegas NV
Default

Originally Posted by KGSloan
why not just flycut the pistons while the head are off?

nothing to worry about then.


Is because i not want to deal on take the motor out of the car do flycut the pistons.I think instead of doin that it worth buy a set of pistons.
Reply
Old Aug 14, 2004 | 12:40 AM
  #8  
jermstyle's Avatar
12 Second Club
 
Joined: Sep 2003
Posts: 634
Likes: 1
From: Houston
Default

Fly cutting the pistons with them in the block is just weird…

Few reasons not to fly cut.

Unless you have the tools to clean up the edges evenly and well, with N20 it could cause detonation. And if you cut and clean too much, you lose compression and weaken the piston some.

Also, there is a chance of getting the pistons out of balance, though not much, still more than I’d like to do.

ICON, do you mean .600 or .006? Because .6 is plenty of PTV for me…

I talked to your friend about that cam and he called you, but you sold it to someone else. I was considering replacing my pistons at the time, but I’m not now because I’m probably going to start building a 427 for some ‘real’ power.
Reply
Old Aug 15, 2004 | 10:45 AM
  #9  
Kenny D's Avatar
TECH Resident
 
Joined: Apr 2004
Posts: 870
Likes: 0
From: SugarLand Texas
Default

Originally Posted by jermstyle
Fly cutting the pistons with them in the block is just weird…

Few reasons not to fly cut.

Unless you have the tools to clean up the edges evenly and well, with N20 it could cause detonation. And if you cut and clean too much, you lose compression and weaken the piston some.

Also, there is a chance of getting the pistons out of balance, though not much, still more than I’d like to do.

ICON, do you mean .600 or .006? Because .6 is plenty of PTV for me…

I talked to your friend about that cam and he called you, but you sold it to someone else. I was considering replacing my pistons at the time, but I’m not now because I’m probably going to start building a 427 for some ‘real’ power.
Yea lol! I didnt do the flycutting cause i heard horror stories about that.
Reply
Old Aug 15, 2004 | 11:15 AM
  #10  
KGSloan's Avatar
TECH Resident
 
Joined: Apr 2003
Posts: 791
Likes: 0
From: Tulsa, Ok
Default

one way to find out is to get your measured valve drop after the heads are ported. then call LG and they'll tell you if it will fit.
Reply




All times are GMT -5. The time now is 05:41 AM.