Valves: Who makes good quality?
Thread Starter
Safety Car
Joined: Sep 2002
Posts: 4,030
Likes: 6
From: Maryland
Valves: Who makes good quality?
?? Who are the best and who are ok and who is to be avoided?
Mine are REV (Racing engine...?) and they are worn after only 15,000 miles. Not sure if it the valve or too much spring.
Want to replace these valves with better. Good hardness.But not brittle.
Thanks for any opinons!
Mine are REV (Racing engine...?) and they are worn after only 15,000 miles. Not sure if it the valve or too much spring.
Want to replace these valves with better. Good hardness.But not brittle.
Thanks for any opinons!
Racer
Joined: Aug 2005
Posts: 336
Likes: 3
From: State of Confusion
How much do you want to spend?
It seems like a lot of the top engine builders use Manley stainless steel. Probably not the most economical choice, but they must be pretty tough. As for worn valves, not sure why that would be. I wonder if the valve springs are bouncing the valves off of the seats. What metal are the seats made of and what metal are the valves made of? Check out those Comp Cams bee hive valve springs, have read some really great things about those. Best of luck
Thread Starter
Safety Car
Joined: Sep 2002
Posts: 4,030
Likes: 6
From: Maryland
Originally Posted by MATCHLIGHT
It seems like a lot of the top engine builders use Manley stainless steel. Probably not the most economical choice, but they must be pretty tough. As for worn valves, not sure why that would be. I wonder if the valve springs are bouncing the valves off of the seats. What metal are the seats made of and what metal are the valves made of? Check out those Comp Cams bee hive valve springs, have read some really great things about those. Best of luck
I ordered those bee hive but my tuner says they are no good for LT1 stainless valves because of the weight.
Team Owner
Joined: Nov 1999
Posts: 32,782
Likes: 11
From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
Cruise-In VI Veteran
Cruise-In VII Veteran
Originally Posted by RichS
Both our Vettes have the Manley stainless race flow valves.
ME TOO
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Lots of serious racers use Manleys. I have the Ferreas, I've never heard anything negative about them, either.
Burning Brakes
Joined: Aug 2000
Posts: 1,146
Likes: 2
From: Albuquerque NM
Originally Posted by sothpaw2
It's not the seat it's the valve stem that is worn bad on just one valve. The others aren't so bad--just nicked at he edge.
I ordered those bee hive but my tuner says they are no good for LT1 stainless valves because of the weight.
I ordered those bee hive but my tuner says they are no good for LT1 stainless valves because of the weight.
I'm using race flow manley valves though....
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Thread Starter
Safety Car
Joined: Sep 2002
Posts: 4,030
Likes: 6
From: Maryland
Originally Posted by RichS
Both our Vettes have the Manley stainless race flow valves.
Seems if everyone likes Manley, I might just do that for peace of mind.