Heads , 440

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mopower440

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Wanting to buy some nice heads for my 440. Its a street car that may see some strip action every now and then. I DO want to get the most out of it as i can with what i can afford. Its a .030 over bored 440 with TRW 2355 pistons, which have a 2.062 compression height. street dominator intake, MP 284/484 cam (will probably be changing it also i know its not near good..also want suggestions on cam), Demonsizzler built thermoquad, 3000 stall convertor, electronic ignition. 1 7/8 fenderwell headers. this is in a dart. so i dont think i can swing the trickflows so have narrowed it down to 4 different heads:

Edelbrock E-street
Stealth WITH the CNC port job and valve job
Pro Maxx shocker series.
speedmaster (only has a 74cc combustion chamber..not sure if that will work with my pistons? Anyone? All other heads on my list have 84cc chambers.)

SO, i can get the edelbrocks for a few hundred cheaper, BUT still have to have them gone over at the machine shop which will cost, AND they only have 210 intake runner. The CNC ported stealths and the promax both have the 240 intake runner. The speedmaster has a 265 intake runner, but the combustion chamber is only 74cc..not sure if thats going to raise compression TOO high and cause issues.. Thoughts? all the other heads are 84cc chambers. I feel the stealths and promaxx and speedmasters are going to perform a good bit better than the e-streets because of the bigger runners so leaning towards one of them. the only problem with the promaxx is that they wont ship out till the end of december, but i can wait. The E-streets would be a little cheaper than the rest but also look like they arent going to flow as much as the other 2 because they come ported already. So there is a lot of folks here with more knowledge than me so any thoughts on what im leaning towards?
 
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?? They list at 1449.00 each at summit..or 1399.00 each with different valve springs..not sure what thats about
Hydraulic roller vs solid roller springs is the difference.
I for one have been disappointed with the several e-street heads.
I've owned a set of stealths, not a super impressive head but their good for what they are.
I've only seen small block speed masters, the quality is getting better I think.
I don't know anything about the promaxx.
240 cc runners is plenty to feed what you have, a little more compression wouldn't hurt either.
For camshaft, I just wouldn't run anything hydraulic flat tappet.
That's just my opinion from working at the engine machine shop ....
 
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Hmmm..i would not be using a roller setup. Would be hydraulic flat tappet or possibly solid flat tappet..Would either of thos heads still work for me?
Yes, the solid flat tappet valve spring and hydraulic roller usually set up about the same pressure.
I edited that post you replied too
 
Hydraulic roller vs solid roller springs is the difference.
I for one have been disappointed with the several e-street heads.
I've owned a set of stealths, not a super impressive head but their good for what they are.
I've only seen small block speed masters, the quality is getting better I think.
I don't know anything about the promaxx.
240 cc runners is plenty to feed what you have, a little more compression wouldn't hurt either.
For camshaft, I just wouldn't run anything hydraulic flat tappet.
That's just my opinion from working at the engine machine shop ....
What was the deal with the e-streets? Surely any of these will be a good improvement over my current bone stock iron heads..? (i hope anyways)
 
What was the deal with the e-streets? Surely any of these will be a good improvement over my current bone stock iron heads..? (i hope anyways)
Just half assed machining, crappy springs, retainers, relatively crappy casting, something you'd expect from China.
I suppose if you wanted to put in a little work they could be fine but it's a pretty small port .
 
Edelbrock is supposedly coming out with a 230 CC port with heart shaped chambers.
Which is pretty stupid in my opinion.
They should be coming out with a 320 CC port lol
 
Just half assed machining, crappy springs, retainers, relatively crappy casting, something you'd expect from China.
I suppose if you wanted to put in a little work they could be fine but it's a pretty small port .
In your opinion, was the stealths better out of the box?
 
Yeah, their a Chinese head & will need to be set up , and cleaned. I would say they're close to the same but I prefer the stealth
Have you done any of the Trick flow 240's? If so, how are they out of the box?
 
Have you done any of the Trick flow 240's? If so, how are they out of the box?
I have a set on my 471 , their very nice.
Pretty much set up just like they say they are.
Very nice ports, chambers are nice. Flow very well as they come . Nice valves and the rest of the parts.
They're too small for my end goal but will do in the meantime
 
I have a set on my 471 , their very nice.
Pretty much set up just like they say they are.
Very nice ports, chambers are nice. Flow very well as they come . Nice valves and the rest of the parts
Did they need any work out of the box also like the other brands or were they good to go?
 
Did they need any work out of the box also like the other brands or were they good to go?
All I did was adjust the springs for a installed height I wanted and that was it. The measurements trickflow said is what they were.
 
All I did was adjust the springs for a installed height I wanted and that was it. The measurements trickflow said is what they were.
Oh wow! That is good.. I am thinking about these possibly but that combustion chamber on the TF is only 78cc where all the others are 84cc...Im not sure this small of a chamber wont cause more pinging..
 
They should be coming out with a 320 CC port lol
We already have one, it's called Indy, if you're looking to make big power Indy is your answer.
BTW they have a heart shaped chamber. lol
 
Oh wow! That is good.. I am thinking about these possibly but that combustion chamber on the TF is only 78cc where all the others are 84cc...Im not sure this small of a chamber wont cause more pinging..
It is a well designed chamber. Your cast iron head chambers are horrible. Aluminium dissipates heat way better, usually people can safely run a full point more of compression with aluminum heads.
I Milled my trickflows down to 64 cc's and have no issues with pinging. I run an octane booster and av gas 100 LL.
I would advise trying to work out your tune, it sounds like it's either going really lean up at full throttle or you have too much timing at full throttle.
 

It is a well designed chamber. Your cast iron head chambers are horrible. Aluminium dissipates heat way better, usually people can safely run a full point more of compression with aluminum heads.
I Milled my trickflows down to 64 cc's and have no issues with pinging. I run an octane booster and av gas 100 LL.
I would advise trying to work out your tune, it sounds like it's either going really lean up at full throttle or you have too much timing at full throttle.
oh wow, 64cc? Is yours a big block also? Wonder why all the others are 84cc and TF are 78? Would the 78cc work with the pistons i have with the 2.062 compression height? I do know the pistons are a little below the deck still..like.014-.020 below the deck i believe..
 
oh wow, 64cc? Is yours a big block also? Wonder why all the others are 84cc and TF are 78? Would the 78cc work with the pistons i have with the 2.062 compression height? I do know the pistons are a little below the deck still..like.014-.020 below the deck i believe..
Yes big block. I think the other ones didn't get the r&d trickflow heads did.
My pistons are above deck .012 , no issues
Your pistons are flat tops ?
I would just run a .030 head gasket and send it
 
Yes big block. I think the other ones didn't get the r&d trickflow heads did.
My pistons are above deck .012 , no issues
Your pistons are flat tops ?
I would just run a .030 head gasket and send it
yes flat top, these are my pistons https://www.summitracing.com/parts/SLP-L2355F30
So you do think the 78cc trick flows would work with my setup and pistons and too much compression wouldnt be an issue for pump gas?
 
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