Performance Boats Forum banner

1 - 13 of 13 Posts

·
Cole SS
Joined
·
139 Posts
Discussion Starter #1
When putting bigger valves in bbc heads should you use a special inconel exhaust valve. Would my stock peanut port heads have these, and how would you tell? What are the pro's and con's of using them or not? I want to use different heads.Confused. Thanks.
 

·
Premium Member
Joined
·
25,975 Posts
When putting bigger valves in bbc heads should you use a special inconel exhaust valve. Would my stock peanut port heads have these, and how would you tell? What are the pro's and con's of using them or not? I want to use different heads.Confused. Thanks.
seriously doubt your stock peanut ports have inconels. They really aren't that neccesary in something less than a HARD running N/A, some if not most blower deals and ALL turbos. Its very difficult if not impossible to tell by looking.
Pros, take heats exceptionly well. Its why they are required in turbo deals, and should be used in almost any good running blower deal or hard run N/A. Hard run doesn't mean you hold it to the floor for a whole 2 minutes. It means your pushing an offshore boat with 750+ hp for an entire race.
There are some very good SS valves out there from Ferrea and REV that will handle 99% of all the N/A motors running. And do it for less than 1/2 the cost of an inconel. When you see the price of an inconel, your wallet will jump and shake.



100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3
 

·
Premium Member
Joined
·
3,360 Posts
Ferrea is now offering "Super Alloy" instead of inconel, supposed to be better.
 

·
Registered
Joined
·
6,278 Posts
the price tells you its better;)
I used them in my last turbo deal and had absolutely no trouble.

This is a copy & paste from there site.

VALVES TECH
GENERAL GUIDELINE FOR FERREA VALVES APPLICATION
TITANIUM VALVES:
These valves are used in professionally built high rpm (above 8000) roller or flat tappet racing engines.
Applications include Drag Racing, NASCAR, Oval & Sprint Car, Road Racing, and Motorcycle.
SUPER ALLOY:
Special extreme duty Hi-Temperature Exhaust Valves. For use in Top/Fuel, Funny/Car, Supercharged,
Nitrous, NASCAR, Sport Compact, Off-Shore Marine, 9.0 to 1 compression restricted carburetor motors(extreme exhaust temperature present).
HOLLOW STEM and HOLLOW STEM SODIUM-FILL VALVES:
The latest addition to the Ferrea Series. These Hollow Stem Lightweight Valves are manufactured
with a unique process that gun drill and micro polish the hollow stem. For the Sodium-Fill Valves
we add a specially formulated sodium into the hollow stem. The use of these valves achieves a weight
reduction (20 % compared with a conventional stainless steel solid-stem valve) and a higher rpm’s with
the hollow stem valves and also a better heat dissipation with the sodium fill valves. Applications for
Domestic, Sport Compact and Motorcycle markets.
COMPETITION PLUS:
Extreme duty racing valves, engineered for high rpm, high horsepower racing engines. They have
exclusive features, which makes them the best flowing valve on the market with unequalled performance
and reliability. Drag Racing, NASCAR, Oval & Sprint Car, Road Racing, Sport Compact, Motorcycle
and Off-Shore Marine.
6000 SERIES:
Competition valves with higher fatigue resistance and tensile strengths than our competitors’ best offering.
These valves are made to withstand high spring pressure, roller and flat tappet cams, Drag Racing, Oval
Track, Road Racing and Sport Compact.
5000 SERIES:
Hi-Performance stainless steel one piece forged valves, fully machined, hard chrome, and hard tip.
These valves are excellent for Hi-performance Street, mildly modified Drag Racing, and Oval Track
applications.
 

·
Premium Member
Joined
·
25,975 Posts

·
Premium Member
Joined
·
3,360 Posts
If you don't drop a valve, they are worth every penny. Running them in the rebuilt 19' Schiada twin turbo deal.
 

·
Some guy
Joined
·
3,615 Posts
Yeah, I have them in one set of heads as well. They are the chit. I REMEMBER buying them very well. I remember much better than when I bought the inconels. I thought I was buying the heads also. But nope, just the valves:)hand Most pleasure boats could get away with 6000 valves and the rest could use Competition Plus valves.
Hey Bob,, the Ferrea Super Alloy valves have actually been costing me considerably less than Manley Inconel
 

·
Premium Member
Joined
·
25,975 Posts
Hey Bob,, the Ferrea Super Alloy valves have actually been costing me considerably less than Manley Inconel
Now why don't I find that hard to believe. maybe why I haven't bought a Manley in over 5 years. Reguardless of the valve material. Strictly Ferrea and REVs
Just so you guys know, Inconel is a register trade name like Kleenex, or Freon. Ferrea Super Alloy is not that far unrelated. the name was just changed to protect the guilty.



100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3
 

·
Some guy
Joined
·
3,615 Posts
The people at Ferrea told me the Super Alloy was developed in conjunction with Mercedes Benz and their turbo engines, and their claim was that it's good for 700 degrees more than an Inconel valve.

Whether or not that is true, I have no real way of knowing.
 

·
AKA Blownjet 468
Joined
·
1,205 Posts
I have always used Ferrea valves since a circle track buddy turned me on to them.
they are a very high quality piece at what I call "affordable" just for piece of mind!
GN7 is the only one I have ever heard of losing the head off of one, but we all know
how hard he runs his stuff!:)hand:thumb:I have generally used the competition plus series
with very good results even in blown applications, but they were not endurance RACE
engines, just cove racers/lake boats- in the endurance area, like GN, OFFSHORE, etc
buy the best you can afford.....JMLAO
 

·
Premium Member
Joined
·
25,975 Posts
GN7 is the only one I have ever heard of losing the head off of one, but we all know
how hard he runs his stuff!
That thing had to be a freak. If I didn't thing it was, I wouldn't run them anymore. I have never seen a valve fail like that. It wasn't a matter of running it hard. It failed in the very first race. And yea, we run the hell out them, and never failed another. I held my breath for awhile after that. But not anymore. We beat the hell out of set of exhausts when the crank snout snapped. Got 6 out of 8. Not one even cracked. And two of them were really jacked up.



100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3
 
1 - 13 of 13 Posts
Top