Valves
 

Can some one explain the difference between Ferera sever duty valves and inconell valves. i have a set of Ferera's and am considering running them on a 512 cid with a .613 .629 LSA 112 hyd roller cam with aluminum heads. Pro's and con's please......

Re: Valves
 

Manley Extreme duty is acceptable for exhaust usage, as is the Ferrea super alloy. The Ferrea valves were less expensive than the Manleys so I went with the Ferrea valves.
Inconel is a trademark name so some of the valve companies like Ferrea don't hang that name on their products.

Re: Valves
 

thanx

Re: Valves
 

Dose NE1 have the phone # for Ferrea so i could talke to a rep?

Re: Valves
 

I need 16 1.88 inconnel exhaust valves. Was planning to go with the extreme duty manleys, but ferrea would be good too. I've heard it said the ferrea flow better. Who has the best price on either? $280/8 is high in my opinion.

BT

Re: Valves
 

$280 for 8?... OMG,.... don't ever buy a foreign car.... you don't want to know the prices for some of those valves... And they are just odd enough that you have to buy from them... :eek:

Re: Valves
 

Does anyone happen to know for sure which valve is heavier between the inconel valve and the Ferrea super alloy valve?

Re: Valves
 

Yes.

Re: Valves
 

Ferrea SuperAlloy
Manley ExtremeDuty

They are BOTH "Inconel" valves.
They BOTH have hardened inserts in the tops of the stems.
They BOTH have stainless stems (not inconel) with the faces "somehow" metallurgically fastened to the stems (I've not heard anybody have trouble with the heads popping off either of them).


Any weight difference will be due to the amount of material (degree of cutback and face thickness), not due to the density of the material.

General consensus is that the Ferreas flow a little better.

Re: Valves
 

You need new ones already??? You have new engines like me...Whazzup?