if Im' gonna run a solid roller on the street,
what is the best valves to use?
something that can withstand the heat and seat pressures.

titanium? stainless? or combination?

Thanks

Aaron

I hear tell Ferrara(Sp?) valves are very good quality if you can afford them.

And I think the exotic materials like Ti and Ceramic are for very special applications??

How hard are you going to beat on it will govern what would be a good price/performance question to ask yourself here, imho..

pdq67

I'm going to be running one of Eds old grinds, solid roller 656/661, the guy doing my heads said stainless will hold up. I just put a little over 1000 miles on my car last year,most of that at the track. Comp 933 springs,titanium retainers,and 10* locks.

who is ed?

is titanium stronger?

i'm looking at a set of heads that have titanium intake and stainless exhause. the owner said that they went to stainless on the exhaust so it would hold up to the street driving heat better.

any thoughts on that?

Manley Severe Duty valves have been holding up great for about 8 years with a solid roller cam.

Ed Bigley= Racer1320 at www.brackettalk.com (http://www.brackettalk.com) he used to post here,but thats a long story smile.gif

Originally posted by Rapid Robert:
I just put a little over 1000 miles on my car last year,most of that at the track. Comp 933 springs,titanium retainers,and 10* locks. Bob,
Is that with a solid roller?

Titanium is probably not the best material for a street engine especially on the exhaust side.
It tends to get brittle with heat & age.
Are you planning on 8000+ on the street??

For the intake Titanium will work fine but in almost all cases for what it sounds like you are doing it is completely unnecessary.

A high quality Stainless is more than adequate for most applications unless you are planning on very high rpm's

I prefer Ferrea Comp Plus for a roller & their "PQ" series material for the exhaust which is now the standard exhaust material.
Manley Severe duty are also excellent as well as a few others like the REV competition ones.
I do not use the cheap valves you will find advertised from a lot of the mail order houses for rollers ever.
I also do not use them in any endurance type engine.
Some do & some get away with it but I prefer to spend a few dollars more when it comes to valve train parts.
Then if it breaks I at least feel like it wasn't because I stuck a crap piece in :rolleyes:

With Titanium I run the intakes for two seasons & the exhausts for one season in both circle track & road race applications.
We have tried running the exhausts two seasons in a road race deal & it got real expensive when one broke.

I have since both changed the seat width & run time.

At $90+ each we are not changing them because they have gotten dirty :D

I also run quite a few Titanium intake/ Stainless ex combos for 390 carb engines as they are not going much over 7800-8000 max & the exhaust being smaller seems to be light enough for the rpm.

Not yet Jim,,,the solid roller is still laying over there on the the floor with those high dollar Crower lifters :D looks like it will be this winter when I either freshen the motor I have or go 468, depends on funds right now. I doubt 7 cubic inches will make that much difference,but the decking,align honing might make a little difference.

stellite is a high temp material commonly used in aerospace applications and someone used to make valves out of it. but i dont recall the manufacturer. it might be worth looking into. i agree with the comment on titanium getting brittle with age, etc. it is a much overated material.