Stainless valves in OE sizes?
#1
Registered User
Thread Starter
Stainless valves in OE sizes?
Do they exist?
I have 4 heads and looking for 1.875 intake and 1.562 exhaust. Do I have to get the heads opened to accept the larger valves? If so, how much am I looking at there?
I have 4 heads and looking for 1.875 intake and 1.562 exhaust. Do I have to get the heads opened to accept the larger valves? If so, how much am I looking at there?
#2
I found Mondello Performance products to have stailess oem and performance valves. I think they make their own. I am having 2.072" intake/ 1.680" exhaust posi-flow stainless installed in a set of #2 330 heads I bought from John for my 64' F-85. Any worthy machine shop can do this pretty easy. The valves and new hardened seats cost me around $400.00, machine shop fees estimated at $200 to $300 when complete..
#6
Registered User
Thread Starter
Ugh, really
So what size valves should I run?
I still want to run stainless valves and I was looking at Mondello's site and they have a set of harded valve seats upto a 1.680 valve.
So if that's my biggest valve I can run on exhaust, should I just go with the 2 inch valve for the intake?
So what size valves should I run?
I still want to run stainless valves and I was looking at Mondello's site and they have a set of harded valve seats upto a 1.680 valve.
So if that's my biggest valve I can run on exhaust, should I just go with the 2 inch valve for the intake?
Last edited by Redog; September 28th, 2009 at 08:25 PM.
#8
Talk to your machine shop guy because he can better tell you how to get the most bang for your buck. I went with the 2.072"int/1.680"exh. because I wanted good flowing heads to match Edlebrock Performer intake and new cam that will make ton's of low to mid-range torque. I will mostly drive around town and when needed hopefully will have power to spare.
#9
Call and talk to Jim at J & S Machine his contact information is here.
http://www.jsmachineoldsmobile.com/home.html
And just so you are aware, there are more places than Mondello for all of your Oldsmobile speed needs. And Cheaper and better quality too.
www.rocketracingperformance.com is another good place to try. I just went to thier website and it has changed recently. BUT call them and talk to John and he should be able to get you any valve you need.
Additionally, there is a valve vendor on Ebay (I think the username is thevalveguy or valveguy) that will be able to get you any size you need as long as you have the dimentions.
John
http://www.jsmachineoldsmobile.com/home.html
And just so you are aware, there are more places than Mondello for all of your Oldsmobile speed needs. And Cheaper and better quality too.
www.rocketracingperformance.com is another good place to try. I just went to thier website and it has changed recently. BUT call them and talk to John and he should be able to get you any valve you need.
Additionally, there is a valve vendor on Ebay (I think the username is thevalveguy or valveguy) that will be able to get you any size you need as long as you have the dimentions.
John
#10
#11
IMO the SBO heads do not flow enough to justify the trouble and expense of valves that big. There are plenty of cars running right quick with the stock 1.560 exhaust valve. Go larger on the intake, 2.02 is all you need. As always, IMO.
#12
Registered User
Thread Starter
I found a place in Utah selling stock sized stainless valves. Plus a guy at my wife's school is going to do the machine work on the heads, for free
I'm probably going to need new springs. I probably will buy them from Mondello because they set the springs, and retainers as a kit for $179.
This guy at my wife's work said that if I'm sticking with the stock cam, it's not worth it to do stainless valves. Is this true? Also he said he'll do a 3 angle valve job and "clean them up" (does that mean port and polish?) and stick with the stock size.
I'll throw a cam in eventually, but not right now
I'm probably going to need new springs. I probably will buy them from Mondello because they set the springs, and retainers as a kit for $179.
This guy at my wife's work said that if I'm sticking with the stock cam, it's not worth it to do stainless valves. Is this true? Also he said he'll do a 3 angle valve job and "clean them up" (does that mean port and polish?) and stick with the stock size.
I'll throw a cam in eventually, but not right now
#13
Have you shopped around or are you going with a "name"?
you really need to check out https://www.rocketracingperformance....alog/index.php for your HP needs.
John
#14
If you don't mind the extra expense and your using the same size valves in my opinion I would use stainless because they are superior to oem stuff. The port and polish option is usually not included in valve installation or valve job. If thats something your considering more that likely will be an extra fee on top of valves, spring installation and 3 angle valve job.....Sounds like your making progress..
Thread
Thread Starter
Forum
Replies
Last Post