The time has come... Do GN valves work? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 06-07-2005, 06:18 AM   #11
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

Not sure if that matters or not. But the lighter it all is, the better you can rev.
BonneMeMN is offline   Reply With Quote
Old 06-07-2005, 07:45 AM   #12
Senior Member
True Car Nut
 
Join Date: Apr 2004
Location: Three Oaks, Michigan
Posts: 4,879
Thanks: 0
Thanked 0 Times in 0 Posts
opensourceguy is on a distinguished road
Default

Length, width, weight [as has been stated], and oil passage? No clue on that one.. but like bonnememn said, lighter = better anywhere on the valvetrain. Pretty much anywhere on the rotating engine..


-justin
opensourceguy is offline   Reply With Quote
Old 06-07-2005, 11:37 PM   #13
Senior Member
Certified Car Nut
Thread Starter
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

Anyone know of some good lightweight valves?
J Wikoff is offline   Reply With Quote
Old 06-08-2005, 01:01 AM   #14
Senior Member
True Car Nut
 
95naSTA's Avatar
 
Join Date: Feb 2003
Location: Philly
Posts: 4,508
Thanks: 0
Thanked 0 Times in 0 Posts
95naSTA is on a distinguished road
Default

Quote:
Originally Posted by jwikoff99
Anyone know of some good lightweight valves?
I think the LS6 vlaves are hollow. Will they fit? (might be a long shot but maybe they come close)
95naSTA is offline   Reply With Quote
Old 06-08-2005, 02:18 AM   #15
Senior Member
True Car Nut
 
Join Date: Feb 2003
Location: Bloomington-Normal, IL 1997 SE
Posts: 3,734
Thanks: 0
Thanked 0 Times in 0 Posts
macho_mike21 is on a distinguished road
Default

dont forget you will need a smaller pulley
macho_mike21 is offline   Reply With Quote
Old 06-08-2005, 09:58 AM   #16
Senior Member
Certified Car Nut
Thread Starter
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

Smaller pulley? Maybe. From what I hear 93 heads on a 92 will lower compression just a little bit.
J Wikoff is offline   Reply With Quote
Old 06-08-2005, 12:22 PM   #17
Senior Member
True Car Nut
 
Join Date: Apr 2004
Location: Three Oaks, Michigan
Posts: 4,879
Thanks: 0
Thanked 0 Times in 0 Posts
opensourceguy is on a distinguished road
Default

Err.. how? I always thought an L67 is an L67. The only difference was the EGR System, and the roller-fulcrum rockers? As with all rebuilds, the compression ratio will drop, but nothing measurable. Unless you get all gasket mating surfaces machined, there will always be some old gasket material left, and there isn't anything you can do about it.


-justin
opensourceguy is offline   Reply With Quote
Old 06-08-2005, 12:43 PM   #18
Senior Member
Certified Car Nut
Thread Starter
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

J Wikoff is offline   Reply With Quote
Old 06-08-2005, 02:29 PM   #19
Senior Member
True Car Nut
 
Join Date: Feb 2003
Location: Bloomington-Normal, IL 1997 SE
Posts: 3,734
Thanks: 0
Thanked 0 Times in 0 Posts
macho_mike21 is on a distinguished road
Default

could you get the heads slimmed a little to raise the compression to what you want?
macho_mike21 is offline   Reply With Quote
Old 06-08-2005, 02:47 PM   #20
Senior Member
True Car Nut
 
Join Date: Apr 2004
Location: Three Oaks, Michigan
Posts: 4,879
Thanks: 0
Thanked 0 Times in 0 Posts
opensourceguy is on a distinguished road
Default

I stand corrected.

Gotta be careful with removing head material. In my Top End Rebuild thread, I couldn't get a straight answer on if I valvetrain replacement, or if my intake was going to need some material removed also. If you are just removing .010" then you should be alright.. but anywhere past that you could run into some problems. I found that our valves come pretty close to piston, even though we have very little lift. So you've gotta be careful with that type of stuff.


-justin
opensourceguy is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
come to the chat room, come to the chat room, come come come wjcollier07 Lounge 12 11-23-2006 10:43 PM
Old school anime lovers, the time has come... sandrock Lounge 4 10-10-2006 10:56 AM
The Time Has Come... JustJeff069 Detailing & Appearance 13 07-02-2006 12:12 PM
The Time Has Come... SSsuperchargedEi Performance, Brainstorming & Tuning 32 09-03-2005 09:36 AM
The time has finally come...... 94Regal Lounge 12 03-01-2004 09:40 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 Off
Refbacks are Off



All times are GMT -4. The time now is 06:46 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.