GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

6.0L LQ4 is in and Running

Thread Tools
 
Search this Thread
 
Old May 5, 2005 | 09:36 PM
  #1  
rosscob's Avatar
Thread Starter
Launching!
 
Joined: Sep 2004
Posts: 238
Likes: 0
From: Austin Texas
Talking 6.0L LQ4 is in and Running

I got my 6.0 installed a couple of weeks ago. To my wifes suprise nothing has gone wrong yet, besides the crank pulley for the whipple comming loose during a tuning session. Allen was trying to prep me for buying a new tranny the way it sounded.

The performance difference is most noticable down low, and it made a HUGE difference.

For anybody thinking about this conversion - DO IT!!! There were zero problems with the swap. The only small snags, and I mean really small, came when hooking up the fule lines and a vacuum fitting on the new intake manifold.

Engine Swap Diary

I did loose 1.5 psi of boost in the swap. I guess the bigger motor just breathes a little better. I'll be searching for some smaller whipple pulleys to play with really soon and then getting some track times.
Reply
Old May 5, 2005 | 09:39 PM
  #2  
99Silver6.0's Avatar
TECH Veteran
iTrader: (1)
 
Joined: May 2002
Posts: 4,039
Likes: 1
From: Olathe, Kansas
Default

Nice nice nice! I have to wait for my dam head gaskets and valley cover. I cant do **** yet. Dyno that heffer yet???
Reply
Old May 5, 2005 | 09:43 PM
  #3  
v8
17,16,15,14,13,12,11 Drvr
iTrader: (10)
 
Joined: Aug 2003
Posts: 6,713
Likes: 0
From: Mont Belvieu, Texas
Default

sound good, and congrats on the bigger cubes.
Reply
Old May 5, 2005 | 10:10 PM
  #4  
rosscob's Avatar
Thread Starter
Launching!
 
Joined: Sep 2004
Posts: 238
Likes: 0
From: Austin Texas
Default

Originally Posted by 99Silver5.3
Nice nice nice! I have to wait for my dam head gaskets and valley cover. I cant do **** yet. Dyno that heffer yet???
No Dyno results or track times yet. I'll probably have both by the end of the month, but my predictions are 410hp at the wheels and 13.5 Quarter.

You are going to love your motor when you get it in!
Reply
Old May 5, 2005 | 10:23 PM
  #5  
WillPewter2000's Avatar
Launching!
iTrader: (1)
 
Joined: Aug 2004
Posts: 269
Likes: 0
From: Heavener, Oklahoma
Default

Did you motor have the longer crank? If so there were no issues with this?
Reply
Old May 6, 2005 | 11:09 AM
  #6  
rosscob's Avatar
Thread Starter
Launching!
 
Joined: Sep 2004
Posts: 238
Likes: 0
From: Austin Texas
Default

I don't know if it had the longer crank or not, but there were zero issues. The motor and transmission mated seamlessly.
Reply
Old May 6, 2005 | 04:22 PM
  #7  
budhayes3's Avatar
PT's Slowest Truck
iTrader: (19)
 
Joined: Apr 2004
Posts: 17,863
Likes: 2
From: Hackensack, NJ
Default

Originally Posted by WillPewter2000
Did you motor have the longer crank? If so there were no issues with this?
What years have the longer crank...and what are the issues? (please forgive the hijack)
Reply
Old May 6, 2005 | 08:18 PM
  #8  
v8
17,16,15,14,13,12,11 Drvr
iTrader: (10)
 
Joined: Aug 2003
Posts: 6,713
Likes: 0
From: Mont Belvieu, Texas
Default

the 6.0 needs to be 2001 or newer to work.
Reply
Old May 6, 2005 | 08:43 PM
  #9  
parish8's Avatar
single digit dreamer
iTrader: (6)
 
Joined: Mar 2002
Posts: 9,743
Likes: 2
From: omaha ne
Default

6.0 swap is one of my favorite mods.

6.0, stall, nitrous

how much boost are you seeing with that whipple now? i wouldn't go over 7psi without an intercooler or alchol injection.
Reply
Old May 6, 2005 | 11:35 PM
  #10  
rosscob's Avatar
Thread Starter
Launching!
 
Joined: Sep 2004
Posts: 238
Likes: 0
From: Austin Texas
Default

Originally Posted by parish8
how much boost are you seeing with that whipple now? i wouldn't go over 7psi without an intercooler or alchol injection.
I am seeing right at 4psi at WOT. I wanted to run between 6-8psi, but don't don't want to blow anything up either. I know I'll probably need a tranny before to long and will probably do a stall at the same time. I have to be a little careful, because I tow a 5000lb trailer constantly.
Reply



All times are GMT -5. The time now is 07:45 PM.