Valves. How much to spend? What's the difference?
Thread Starter
Melting Slicks
Joined: Feb 2003
Posts: 3,053
Likes: 4
St. Jude Donor '03,'11
Valves. How much to spend? What's the difference?
I'm looking to purchase valves.
The prices range from about $30 per set of 8 to the sky's the limit.
This is for a mild street engine. How cheap can i get away with? I don't care if they are polished or undercut. I just want a reliable valve that won't release from the keeper and destroy my engine. A stem that will last 100K miles before it wears out.
I can get 8 Manley budget replacements for $33
Elgins for $45
Manley performance for $45
some made in Israel for $30
Ferreas for $60
GM replacements are $136
Does anyone know who makes the GM replacement valve?
The prices range from about $30 per set of 8 to the sky's the limit.
This is for a mild street engine. How cheap can i get away with? I don't care if they are polished or undercut. I just want a reliable valve that won't release from the keeper and destroy my engine. A stem that will last 100K miles before it wears out.
I can get 8 Manley budget replacements for $33
Elgins for $45
Manley performance for $45
some made in Israel for $30
Ferreas for $60
GM replacements are $136
Does anyone know who makes the GM replacement valve?
Thread Starter
Melting Slicks
Joined: Feb 2003
Posts: 3,053
Likes: 4
St. Jude Donor '03,'11
The GM PP intake valves i got on ebay.
part # 12363753 2.02 intake valve lists for $17-23 at various dealers
The top of the stem has a different part # 01763R K-BH
I looked up that part number and it's an SBI valve out of Nashville TN.
Anybody know if SBI makes valvetrain parts for GM or did this guy slip some cheap valves in GM boxes?
Racer
Joined: Jun 2009
Posts: 326
Likes: 0
From: Texarkana TX
SBI is a good company...they supply some of the companies you listed, for basic street use and mild cams any of the brands listed would be fine.
Burning Brakes
Joined: Aug 2000
Posts: 1,146
Likes: 2
From: Albuquerque NM
-Low flow stocker are the cheapest, weakest, and lowest flow.
-Gm makes a light weight hollow/sodium 2"/1.55?" For their lt4...for the weight is an excellent deal. The valves are just not under cut so flow hurts. With lite rockers, beehive springs, the valves help add 500 rpm and resultant horsepower. There's also the issue of only the stock size being available. $85-$140 a engine set
Manley (my favorite) makes a sturdy under cut valve for increased flow. With pocket porting I added 30 cfm to a set of fast burn heads ... $45-$155 set of eight
p
Ferrera has a larger selection. Of hollow valves. $85-$155 a 8 valve set. So less weight (more rpm/hp), more flow (more hp), slight decrease in strength with the removal of material.
No body makes fun valves for Afr eliminators/ls1 sizes. I've gone looking for 0.100" taller, hollow, tulip-ed, and undercut and found no matches.
everybody sells titanium valves at very hi expense...but Ti valves aren't as strong as steel valves and will not be as "forgiving " as steel...$85 each. Plus you'll still need exhaust valves.
-Gm makes a light weight hollow/sodium 2"/1.55?" For their lt4...for the weight is an excellent deal. The valves are just not under cut so flow hurts. With lite rockers, beehive springs, the valves help add 500 rpm and resultant horsepower. There's also the issue of only the stock size being available. $85-$140 a engine set
Manley (my favorite) makes a sturdy under cut valve for increased flow. With pocket porting I added 30 cfm to a set of fast burn heads ... $45-$155 set of eight
p
Ferrera has a larger selection. Of hollow valves. $85-$155 a 8 valve set. So less weight (more rpm/hp), more flow (more hp), slight decrease in strength with the removal of material.
No body makes fun valves for Afr eliminators/ls1 sizes. I've gone looking for 0.100" taller, hollow, tulip-ed, and undercut and found no matches.
everybody sells titanium valves at very hi expense...but Ti valves aren't as strong as steel valves and will not be as "forgiving " as steel...$85 each. Plus you'll still need exhaust valves.
Last edited by ZD1; Jul 2, 2010 at 07:49 PM.
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