Heads for 440

[496 polara]

Buy them! How can you lose money at that price? Aluminum heads are more tolerant than steel heads,thicker head gasket, and your timing curve can be slowed as well. You won't find a deal anywhere near that even if you have some extra costs getting them installed and setup.

 

[mygasser]

agreed and from what i read here last year the deals go pretty quick. you snooze, you lose as they say.
neil.

 

[PRH]

Speedmaster 74cc heads are copies of Ede Victor heads and require some special parts to be able to use them.
Offset rockers being the main thing.

If the OP wants an aluminum user friendly version of a stock head with straight plugs……there are really only two choices.
Stealths, and the 84cc E street head, number 5093(which are way more $$ than the stealths).

With FW headers the angle plugs are a non-issue, and the Ede 84cc RPM head(angle plugs) is a better deal than the E street 5093……but is still a few hundred $$ more than the Stealths.

 

[mopower440]

Speedmaster 74cc heads are copies of Ede Victor heads and require some special parts to be able to use them.
Offset rockers being the main thing.

If the OP wants an aluminum user friendly version of a stock head with straight plugs……there are really only two choices.
Stealths, and the 84cc E street head, number 5093(which are way more $$ than the stealths).

With FW headers the angle plugs are a non-issue, and the Ede 84cc RPM head(angle plugs) is a better deal than the E street 5093……but is still a few hundred $$ more than the Stealths.

Speedmaster 74cc heads are copies of Ede Victor heads and require some special parts to be able to use them.
Offset rockers being the main thing.

If the OP wants an aluminum user friendly version of a stock head with straight plugs……there are really only two choices.
Stealths, and the 84cc E street head, number 5093(which are way more $$ than the stealths).

With FW headers the angle plugs are a non-issue, and the Ede 84cc RPM head(angle plugs) is a better deal than the E street 5093……but is still a few hundred $$ more than the Stealths.

Well, If i use the stealths, i was going to use the CNC ported version which SHOULD flow more than the e-street or rpm's..what is your thoughts on this..i know you have probably had both the CNC ported stealths and out of the box eddys in your shop.

 

[PRH]

Yes, The cnc stealths flow more than their unported counterparts.

 

[mopower440]

Yes, The cnc stealths flow more than their unported counterparts.

Was just looking at the RPM heads and with the discount code they are quite a good deal also, BUT then i saw this at the bottom of the page: These heads require adjustable rocker arms and a minimum of a 2.0 in. header tube. A smaller tube has a smaller radius and will not clear the spark plugs. Vacuum advance distributor may not clear cylinder head.

I use the factory rockers and shafts with the hydraulic cam, and my fenderwell headers are 1 7/8. So there goes that idea...Arghh!

 

[PRH]

As I previously mentioned…….the plugs are not an issue with the FW headers.

I have customers running them with stock rockers.

I guarantee you there are tons of cars running Ede heads, and all the copies, with headers smaller than 2”.

 

[mopower440]

As I previously mentioned…….the plugs are not an issue with the FW headers.

I have customers running them with stock rockers.

I guarantee you there are tons of cars running Ede heads, and all the copies, with headers smaller than 2”.

Oh ok..I knew you said the fenderwell headers make the angled plugs a non-issue but wasnt sure about the 2" header tube thing they mentioned, and why they would say you HAVE to use adjustable rockers. So they have 2 different versions of the 84cc RPM heads, which one do you recommend for my setup?
Edelbrock 60929 Edelbrock Performer RPM Cylinder Heads | Summit Racing
or
Edelbrock 60925 Edelbrock Performer RPM Cylinder Heads | Summit Racing

The 60925 does not state the rocker arm or header notes at the bottom like the 60929. The 60929 is cheaper.

 

[PRH]

The only difference between those heads are the valve springs.

 

[mopower440]

The only difference between those heads are the valve springs.

which one would have the spring needed for the hydraulic cam i have?

 

[PRH]

60929- FT cams
60925- HR cams

 

[mopower440]

60929- FT cams
60925- HR cams

Thanks very much for the info! I wish i had known earlier that that head WILL indeed be able to use the stock rockers and shaft. So i know you do a lot of the rpm heads in your shop. Do they usually need a lot of work out of the box?

 

[PRH]

They rarely need much work, but it’s also rare that they need nothing.

Like most assembled performance parts……some are better than others.

 

[mopower440]

They rarely need much work, but it’s also rare that they need nothing.

Good to know, thanks! Would i be leaving a lot of power on the table by going with the rpm instead of the cnc ported stealths?

 

[PRH]

I doubt it.

On a build similar to yours, but with a HR cam, Enginemasters tested a 906 v stealth v rpm v tf240 and it was about a 20hp jump to the next head.

So, 20hp from an rpm to a tf240……which is a better head than a cnc stealth.

 

[mopower440]

I doubt it.

On a build similar to yours, but with a HR cam, Enginemasters tested a 906 v stealth v rpm v tf240 and it was about a 20hp jump to the next head.

So, 20hp from an rpm to a tf240……which is a better head than a cnc stealth.

wonder what kind of gaines i would see going from the stock 452 to the RPM heads

 

[PRH]

Well, in that EM test it was about 40hp from 906’s with a little work to the RPM’s.

When the rpm heads first came out over 20 years ago, there were plenty of stock vs rpm tests in the magazines.
I’m sure you can find a few by searching.
My recollection is the results varied quite a bit.

 

[33IMP]

DANG!! The speedmaster are on sale today for 915.00 for the set! I would jump on them right now but the combustion chamber is only 74cc so i am unsure if it would be too much compression for pump gas with my setup or not..

And they need offset rockers.
You can gamble on speedmaster rockers for a couple hundred, or figure on another $1000 or so for good ones.

 

[33IMP]

I'd take a look at Promaxx heads from Marsh performance. Another option, As cast or cnc available, I believe.

 

[Ricks70Duster340]

DANG!! The speedmaster are on sale today for 915.00 for the set! I would jump on them right now but the combustion chamber is only 74cc so i am unsure if it would be too much compression for pump gas with my setup or not..

Use a thicker head gasket?

 

[PRH]

I'd take a look at Promaxx heads from Marsh performance. Another option, As cast or cnc available, I believe.

Is he selling Promaxx now?

It was Sidewinders previously(which I’m pretty sure are the same castings).

 

[33IMP]

Is he selling Promaxx now?

It was Sidewinders previously(which I’m pretty sure are the same castings).

I thought they were the same castings too.
Maybe Marsh is selling Sidewinders.

 

[PRH]

A tidbit from my porting bench……
For me at least…… of the Ede’s and the copycats, I find the “sidewinder” type casting to be the easiest to get to 300cfm.
(For this style of head, I feel 300cfm is the limit that still falls into my “the most gain for the least work” mantra).
The stealth is the hardest for me, and the Ede in between.

Of course, the cnc machine doesn’t care(but I don’t have one of those).

I don’t know if I’ve ported a set of any of those to that level since the TF’s arrived on the scene in 2016, but prior to that I was doing roughly a set a month for like 12 years.

 

[mopower440]

A tidbit from my porting bench……
For me at least…… of the Ede’s and the copycats, I find the “sidewinder” type casting to be the easiest to get to 300cfm.
(For this style of head, I feel 300cfm is the limit that still falls into my “the most gain for the least work” mantra).
The stealth is the hardest for me, and the Ede in between.

Of course, the cnc machine doesn’t care(but I don’t have one of those).

I don’t know if I’ve ported a set of any of those to that level since the TF’s arrived on the scene in 2016, but prior to that I was doing roughly a set a month for like 12 years.

Speaking of the TF 240 heads, are they useable with the stock rockers and shafts and all the other stock stuff?

 

[mopower440]

Is he selling Promaxx now?

It was Sidewinders previously(which I’m pretty sure are the same castings).

I spoke to him about the sidewinders he sells a few days ago. He said he is out and doesnt know when he will have them again due to the Tarriff situation.