6.5 heads - Diesel Bombers



6.2L & 6.5L Performance Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines Related to Performance and Longevity

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 02-26-2011, 09:05 AM
muderxtreme's Avatar
Diesel Enthusiast
Thread Starter
 
Join Date: Jan 2010
Posts: 129
Default 6.5 heads

Does anyone know or have tried either double stacking head gaskets or de-stroking a 6.5 to run more boost. I've done it before with small blocks to run turbos and stuff but I dont really know much about the 6.5s and was thinkin about it when I rebuild mine
Reply With Quote
  #2  
Old 02-26-2011, 10:55 AM
Diesel Enthusiast
 
Join Date: Dec 2009
Posts: 115
Default

well i dont think u can double stack head gaskets i dont think that would work out to well
there may be thicker gaskets available im not sure though
Reply With Quote
  #3  
Old 02-26-2011, 02:11 PM
Woody35's Avatar
Diesel Bomber
 
Join Date: May 2008
Location: Chicago IL
Posts: 2,856
Default

thats more of a cheater way to lose compression. if you run too much boost and too thick of gasket you have the risk of blowing the headgasket
Reply With Quote
  #4  
Old 02-28-2011, 04:05 PM
muderxtreme's Avatar
Diesel Enthusiast
Thread Starter
 
Join Date: Jan 2010
Posts: 129
Default

Ya I know its the cheater way but it was just a though. How about destroking a 6.5, anyone heard of that? Or even if you could stroke one by using a different crank like a 400 crank in a 350 sbc.only reason I'm asking is because I kinda want something different than the normal.
Reply With Quote
  #5  
Old 02-28-2011, 04:17 PM
Newbie
 
Join Date: Jan 2011
Location: Lakehills,Tx
Posts: 7
Default

If you want to know what you can or can't do to a 6.5td talk to Bill Heath at heathdiesel.com He has at least 20 6.5td and some run as high as 35psi boost
I am currently running 15 psi boost with no mods and no problems
Reply With Quote
  #6  
Old 02-28-2011, 07:06 PM
Diesel Wrench
 
Join Date: Feb 2010
Location: Wadesville IN
Posts: 831
Default

You can't stroke or destroke a 6.5 with out offset grinding a crank. The 6.2 and 6.5 share the same stroke. You don't wan't to lower compression because it moves the top of the piston further from the pre chamber and hurts its ability to function properly.
Reply With Quote
  #7  
Old 02-28-2011, 09:59 PM
muderxtreme's Avatar
Diesel Enthusiast
Thread Starter
 
Join Date: Jan 2010
Posts: 129
Default

Alright then, I was just curious because I've done it with other motors but never a diesel. thanks to everyone for their imput
Reply With Quote
  #8  
Old 03-03-2011, 02:14 AM
Diesel Fan
 
Join Date: Feb 2011
Posts: 19
Default

gm does make different thicknessof headgaskets
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
94 gmc 2500 6.5 turbo cracked heads greatlakes diesel Chevy/GMC 6.2L and 6.5L 4 02-13-2015 10:55 PM
looking for 6.5 cracked heads detroitdiesel idi Chevy/GMC 6.2L and 6.5L 0 12-27-2014 11:03 PM
95 Chevy 6.5 Turbo Diesel rough idle - HELP Snoobly Chevy/GMC 6.2L and 6.5L 2 12-11-2014 12:59 PM
6.5 slow start bdemutis Chevy/GMC 6.2L and 6.5L 3 12-07-2014 02:36 AM
How good is the 6.5 motor? bdemutis Chevy/GMC 6.2L and 6.5L 5 11-28-2014 09:16 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 02:09 AM.