LY6 Intake Valves - LS1TECH

Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Generation IV Internal Engine
Sign in using an external account
Register Forgot Password?
Search


Generation IV Internal Engine
2005-2014 LS2 | LS3 | LS7 | L92 | LS9
Sponsored by
ERL Performance

LY6 Intake Valves

Reply
 
Thread Tools Search this Thread
Old 04-08-2012, 08:40 AM   #1
TECH Apprentice
 
LongIsland63SS409's Avatar
 
Trader Rating: 22
Join Date: May 2010
Location: Long Island, NY
Posts: 372
Default LY6 Intake Valves

Building a street/strip 98 Camaro with a 2008 6.0L LY6.

Heard good and bad stories about the intake valves.
Too heavy?
Do they need be be upgraded?


Thanks,
Mike
__________________
www.lidragracing.com

www.msracingcomponents.com
VVT UNLOCKER TM
LongIsland63SS409 is offline   Reply With Quote
Old 04-08-2012, 09:11 AM   #2
TECH Junkie
 
Trader Rating: 0
Join Date: Jul 2009
Posts: 3,648
Default

I am in the same boat. Same engine. For the cost of the valves and having a good valve job, I might as well buy new LS3 heads from PACE.
Jimbo1367 is offline   Reply With Quote
Old 04-08-2012, 09:28 AM   #3
TECH Apprentice
 
LongIsland63SS409's Avatar
 
Trader Rating: 22
Join Date: May 2010
Location: Long Island, NY
Posts: 372
Default

Very true after you factor in the valves and the valve job. That's why I am leaning towards running them the way they are. Anybody running them in stock form?

Will be keeping the VVT. Just picked up the Texas Speed VVT 3 cam.


Mike
__________________
www.lidragracing.com

www.msracingcomponents.com
VVT UNLOCKER TM
LongIsland63SS409 is offline   Reply With Quote
Old 04-08-2012, 10:32 AM   #4
TECH Addict
 
85MikeTPI's Avatar
 
Trader Rating: 9
Join Date: Jun 2008
Location: Newark, DE
Posts: 2,173
Default

RPMs, valvetrain weight, and valve spring pressures all come in to play. If you're running high rpms or heavy valves, the springs must be up to the task of controlling them. Since you have to do springs for the VVT 3 lifts, just make sure the springs you choose can also handle the heavy valves and any rpm expectations you have.
85MikeTPI is offline   Reply With Quote
Old 04-08-2012, 11:35 AM   #5
TECH Apprentice
 
Che70velle's Avatar
 
Trader Rating: 0
Join Date: Jan 2012
Location: Dawsonville Ga.
Posts: 366
Default

I spoke with Mast Motorsports last week. Their tech director told me that they have turned their ly6 to 7100 rpm, with no problems. I am cam shopping, but whatever I purchase, it will be in kit form...cam, springs, retainers, etc.
__________________
Scott
70 'velle ly-6, Mast SS VVT, t-56 stage 2, custom chassis on coil-overs, 12 bolt, wilwood 6/4's...
My build thread...http://ls1tech.com/forums/conversion...ld-thread.html
Che70velle is offline   Reply With Quote
Old 04-08-2012, 12:01 PM   #6
TECH Apprentice
 
LongIsland63SS409's Avatar
 
Trader Rating: 22
Join Date: May 2010
Location: Long Island, NY
Posts: 372
Default

Thank you interesting info from Mast. The LY6 has Inconnel exhaust valves that can take extreme high heat. I have a GM LY6 summary that states that the engine was developed and tested for 200k miles under high load conditions.

I will if I can find the PDF online or I will scan and post it.

Mike
__________________
www.lidragracing.com

www.msracingcomponents.com
VVT UNLOCKER TM

Last edited by LongIsland63SS409; 04-08-2012 at 12:19 PM..
LongIsland63SS409 is offline   Reply With Quote
Old 04-08-2012, 12:30 PM   #7
TECH Addict
 
Trader Rating: 0
Join Date: Dec 2005
Posts: 2,607
Default

From what I have been told as long as you have the right springs there should not be a problem. Looking into the Texas Speed VVT-3 myself.
1989GTA is offline   Reply With Quote
Old 04-08-2012, 12:30 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
LS2 fuel rail covers on LY6 ALLDUN5 Generation IV External Engine 0 03-28-2011 01:47 PM
Ls3 intake valve pushrod tiresmokinV8 Generation IV Internal Engine 2 03-08-2011 12:17 AM
LY6 valve relief volume? ponjohn Generation IV Internal Engine 1 12-30-2010 11:18 AM
ly6/chevelle pcv plumbing prot68 Conversions & Hybrids 7 11-02-2010 07:55 PM
LY6 Throttle Body ddcarter Generation IV Internal Engine 5 09-24-2008 08:30 PM


Tags
cam, engine, exhaust, gm, good, highest, intake, island, job, long, ly6, miles, size, speed, texas, valve, vvt3


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 Off



Join Ls1Tech

All times are GMT -5. The time now is 10:14 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details