I usually use Ferrea valves on my small block Mopar Edelbrock style heads and will be buying a few sets. (2.05 and 2.08 plus .100 Chevy). What manufacture are you guys using?
Small block Mopar 2.05 and 2.08 valves.
- Thread starter pittsburghracer
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Rat Bastid
Dunamis Metron
At this point it may be what you can get without waiting a coon’s age.
Ferrea is probably top of the mark for stainless valves.
Ferrea is probably top of the mark for stainless valves.
A little valve tech I stumbled on
furrystump
Well-Known Member
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Ferrea.
I’ve been running the stock Edelbrock exhaust valves for years with zero issues probably because of their weight. But we did have a 1/4 inch piece of a stock Edelbrock intake valve break off on number 3 and lodge in a piston on number 6.
Bobzilla
Well-Known Member
How was it running in the two or three passes before that happened? Any warning signs at all?
Not a thing. Something to think about though is my son was driving my duster during this period of time. He like many in the younger generation is a top end whomp whomp whomper and these kids are good at it. I think that is responsible for many of today’s engine issues. Luckily I turned the engine over while the driver’s side head was off. The engine stopped so I turned it over in the other direction. That’s how I found the valve piece stuck in the piston on the other side of the engine. That saved me from pulling it apart again.
Ferry
Active Member
I use Ferrea in a set of heavily ported j heads. I also wanted to use these for a set of cnc'd speedmasters, but the delivery times are very long. That's why switched to Manley and also takes a long time because they put the wrong damn valves in the box!
Ferry
Active Member
Normally no problem. But almost everything i need is in backorder. I have a contact in the US who bundles all my orders into one package. He can also adjust the total value to reduce tax.
I called Ferrea and Manley for 2.05's but they did not had the materials at that time. It sucks...Rebuilding a 416 has been taking longer than 1 year now.
Tims 66 Cuda
Mopar mid life crisis
I used Ferrea 2.05 and 1.62 on my bare aluminum heads. Its a street motor though, but so far so good.
Tim
Tim
Dan the man
Well-Known Member
Question, do those 2.05's along with 1.600 exhaust clear the cylinder bores and what about the distance between the valves? I'm wanting to learn more about the performance world of the sbm's.
The head with 2.05’s is on my flowbench right now on a 4.015 bore adapter. [email protected] (he’s running a 575 lift cam). I run 2.08 valves in mine on a 4.030
Bore.
Dan the man
Well-Known Member
You running 1.600" exhaust valve's? I remember reading that there's suppose to be a minimum clearance of 0.03" between the valves, is this true?
Yes 1.60 exhaust valves.
Dan the man
Well-Known Member
Sounds like a runner for sure
I think he will be happy
With a 2.05 valve size. Using a 2.08 like I have only bumps you up to 315-318 cfm with a 195 cc intake runner. They become very touchy in that area and very dependent on short side size and shape.
Dan the man
Well-Known Member
What rpm range will it run in with those size valves, cam
I’m not sure where he will be shift at but my 408 went 5.98 which would be around a 9.30 shifting at 6700 rpm. I may step it up some next year just for a new best in some good weather but it’s just a bracket build so why beat on it. I keep hearing these stock blocks can’t take much.
Dan the man
Well-Known Member
I've heard that to,but I don't know for sure
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