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

Broken valve stem

Thread Tools
 
Search this Thread
 
Old Nov 22, 2016 | 04:34 PM
  #1  
hansomeden's Avatar
Thread Starter
Teching In
 
Joined: Feb 2013
Posts: 5
Likes: 0
From: gold coast australia
Default Broken valve stem

I have a set of AFR 215 heads that have done 4000 miles.Recently at a track day the car developed a bad miss,I thought it might be electrical but after a bit of searching I discovered that an exhaust valve stem had broken At the top groove where the locks fit,lucky the valve didn't drop into the cylinder.I was wondering if this has happened often or is just a one off?
Reply
Old Nov 23, 2016 | 05:59 AM
  #2  
vettenuts's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Jul 2004
Posts: 8,092
Likes: 13
From: Little Rhody
Default

Not sure on the AFR valves, but the stock valves have a welded tip. I would either contact AFR or for a better answer shoot a PM to Tony Mamo.
Reply
Old Nov 23, 2016 | 03:04 PM
  #3  
Tony @ Mamo Motorsports's Avatar
LS1Tech Sponsor
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Top Answer: 1
 
Joined: Sep 2004
Posts: 819
Likes: 561
Default

Contact AFR....they will get you sorted out

Try to take some good photos and call their Sales Dept. They are still open today if you have the chance

-Tony
__________________


www.mamomotorsports.com

Tony@MamoMotorsports.com

Anything worth doing is worth doing well. Build it right the first time....its alot cheaper than building it twice!!
Reply




All times are GMT -5. The time now is 06:15 AM.

story-0
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-1
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-2
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-3
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE