The iron 452 is a open chamber head. most aluminum heads are closed chamber.
quench is non existent with the 452 head.
quench is non existent with the 452 head.
because according to that post, if you have a flat top piston then its not worth the gain to go with the aluminum open chamber heads because of no quench. I dont want to change my pistons to dome or whatever would be needed to make it happy with the open chamber aluminum heads..
I thought that sounded odd. Thanks for the heads up on this! I am in the process of deciding which set to buy.Most aluminum heads are closed chamber. Edelbrock, 440Source, Trick Flow, Indy, etc. all have closed chamber heads. Edelbrock has both closed and open chamber heads so you have to be careful about which you order but otherwise the aftermarket has all gone with closed chamber heads. The post you are reacting to was incorrect. you can't believe everything you read on the internet. You can't even believe everything posted on this forum........
Do you know if these would be the most gain out of all the ones listed in my price range and are they reliable?Then maybe this is more for your wallets. also sold in pairs.
MAXX 210 BB MOPAR (Sold in Pairs) - PROMAXX Performance Products
Between the Edelbrock head and the ProMaxx head, they are identical in there flow spec listing with the same valve diameters.
The ProMaxx heads are purchased by ProMaxx bare from China and machined here in (IIRC) Alabama with parts they choose to equip them with.
Since both list the same is specs, the cheaper one would win in my book.
Reliable? I have not read or heard of anything bad on ProMaxx. I just installed a small block shocker set on the wife’s car. I have not yet started the car up. I’m waiting on transmission parts.
I did take the small block head apart. I did like what I saw. Valves moved free and easy, they sit good in there seats.
As of right now, if I had no performance head, yes, I agree. However, the ProMaxx heads were purchased long before the Trick Flows came out.If I were doing it over, think I`d save up for the trickflows !
I’m sorry but you do not understand the repeated question after I repeatedly gave you the answers and information needed to decide. Therefore, you must be ******* with me and I now remove myself from this thread.Do these other heads (promax, sidewinder, etc) Still give a dang good gain? I really cant afford the trick flows but can one of these others, but don't want to if I wont see much out of them..
Aluminum will stomp the snot out cast heads.because according to that post, if you have a flat top piston then its not worth the gain to go with the aluminum open chamber heads because of no quench. I dont want to change my pistons to dome or whatever would be needed to make it happy with the open chamber aluminum heads..
Guys, i appreciate all the info and advice! This has been something ive wanted to do for a long time and just wanting to be sure i do it right(within the budget i have). As for pissing off Fish, i appologize for that, it SURE as hell was not intended! The reason i asked again was because of the comment about' If i had to do it over, i would save for the trickflows'..I almost thought it sounded like a regret for buying what was bought, so i asked again if the gains with the head purchased were still good enough to warrant buying them..i should have worded it better and im sorry. Again, i did not want to make anyone mad..Thats the reason i stay away from moparts as much as i can because there are so many on there that act like its a burden to have a conversation in a post..They make you feel like a dumbass because you ask a question or dont understand the answer so you ask more on the subject..again, im sorry.As of right now, if I had no performance head, yes, I agree. However, the ProMaxx heads were purchased long before the Trick Flows came out.
The TF’s are an excellent value w/excellent flow rates for the buck.
But, you can not exceed the speed of your wallet.
This surprises me ^. I thought the eddies were substantially better than the chinese heads but I believe you know what your talking about. Shouldn't have paid $500 more for the same thing.Here’s how I see it......
No one has a crystal ball they can look into and give a definitive answer as to how much more power will be gained by swapping your 452’s for some aluminum head........ on your motor.
There is only one way that question can be answered.
Go chassis dyno the car as it is, install the new heads..... retest.
If you’re not willing to do that, then you really don’t care what the difference in power is....... in which case the decision on which head to use is easier........ the cheapest one.
The way I look at it is....... Ede heads, and the copycats(stealth, sidewinder, promaxx, speedmaster), are all interchangeable.
On a mild build like this, in truly “ootb” form...... as in ZERO porting...... I wouldn’t expect to see 10hp difference between any of them.
They’re fundamentally all the same head.
The original...... and the Chinese copies.
Just pick one and go.
This surprises me ^. I thought the eddies were substantially better than the chinese heads but I believe you know what your talking about. Shouldn't have paid $500 more for the same thing.
This surprises me ^. I thought the eddies were substantially better than the chinese heads but I believe you know what your talking about. Shouldn't have paid $500 more for the same thing.
I'm using the RPM's hence the $500 extra cost. 446, aftermarket crank, ESP rods, Icon pistons, xe284 cam (hope Wyrmrider is not around), RPM intake, D452 headers and only more 10hp?$500?
E Streets are $100-300 more than the Chinese copycats.
I’d pay the difference....... but not everyone would.
Also....... it would be around 10hp difference....... on a mild street type 440 build.
People sometimes have a hard time comprehending that that doesn’t mean there can only be 10hp difference.
On a bracket race 505 with 11:1 and a good sized solid cam, big headers, big intake, etc......the type of combo where any of this style of ootb head is way too small to allow the motor to make big power.
In that situation, the E Streets having the best ootb flow are going to make very good use of whatever that flow advantage is.
I could see a best-to-worst scenario where the difference in power could be over 20hp.
My understanding is 10hp more than the cheap chinese aluminum heads. But thanks.No. They are saying that there is only about a 10 HP difference between all the edelbrock style heads, not only 10hp over stock iron heads..
I don't think so, a standard cnc port victor head is far above those others.No. They are saying that there is only about a 10 HP difference between all the edelbrock style heads, not only 10hp over stock iron heads..
My understanding is 10hp more than the cheap chinese aluminum heads. But thanks.