Edelbrock, speemaster or promaxx heads
- Thread starter rscottick
- Start date
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Fisher
Old Guy with a Cool car.
Pretty vague post. What does your engine builder suggest for your application? Race car street car etc. Quality costs money China equals junk .
stroked340
Well-Known Member
The ones that I have for sale here..
Jerry gray
Well-Known Member
Jerry gray
Well-Known Member
Hey stroked 340 ,what heads do you have for sale
gzig5
Well-Known Member
Trick Flow 190. They will out flow any of those out of the box. Wait another week or three and the real world experience will start rolling in, but my money is on the TF.
I have 2 sets of speedmasters (1 cnc set and 1 normal set). They are Edelbrock knock offs.. But look WAY better, casting wise. Valve job is mediocre but still functional out of the box. Can't beat the price.
if money is not a problem.. Trickflows would be my bet. I might save up and buy a set to replace the CNC speedmasters I have.
if money is not a problem.. Trickflows would be my bet. I might save up and buy a set to replace the CNC speedmasters I have.
dano
Evil Handy Man
I have a set of Speedmaster i.e. Procomp heads. The castings are decent, the hardware is not. Buy them bare and have them set up for your application. My we're built my Mike at MRL, but he is no longer in business. If you search this site you'll find posting by him about them.
Regardless of whatever head you get, if its out of the box assembled pay the extra to have them checked over.
Choice of head is going to depend on your build and application.
Regardless of whatever head you get, if its out of the box assembled pay the extra to have them checked over.
Choice of head is going to depend on your build and application.
Of the 3 heads in the title, I have two of them. But not on 408’s.
I have the Edelbrock’s & the ProMaxx CNC Shockers which are Edelbrock knock offs and only a 5cc difference on the intake port, which do flow pretty good. The CNC porting isn’t a full tilt job. For anybody wondering, here is the Pro Maxx page in the head. Just scroll down and click the flow sheet bar. I’d call it a good bang for the buck up until the new Trick Flow heads. Except for the added cost of the rocker set up for the Trick Flow heads, in which if you already have a roller rocker set up that works on the Pro Maxx/Edelbrock head, the Trick Flow, it is a win win.
Since your not lifting the valve to .700, the only lifts that count is how high you actually are lifting the valve. (Net or actual at the valve lift.)
Pro Maxx CNC Shocker page;
Shocker 185 Mopar CNC (Sold in Pairs) - PROMAXX Performance Products
Stroked340’s Hughes ported heads here;
[FOR SALE] - Edelbrock 340 heads
Trick flow’s SBM page.
5.9L/360 - PLYMOUTH - Cylinder Heads - Cylinder Heads - TrickFlow.com
gzig5
Well-Known Member
What's the diff on the TF rockers? I thought they took a standard dimension rocker with no special offset, they just need to be able to clear a 1.550" dia spring? The PRW rockers that were in the pics on IMM's facechat site supposedly work. I dont' think many would try to run stock stamped rockers on $2000 heads
It depends entirely upon who prepares and sets up the heads.
Ugh! Yup, I was thinking Victor heads.
These have a set up from Harland Sharp that are $77 more expensive than standard heads roller rockers. No big deal right!
But OH! Many do run stamp steel stock rockers on there $2000 heads! In deed they do!
gzig5
Well-Known Member
PRH
Well-Known Member
The speedmaster and promaxx are both imported copies of the Edelbrock head.
Fundamentally, if you do the same work to all of them, they’ll make the same power.
For assembled heads, I have more confidence in the Edelbrock hardware.
Unless it’s a super budget deal, my preference with the import heads is to buy them bare and source my own parts.
Fundamentally, if you do the same work to all of them, they’ll make the same power.
For assembled heads, I have more confidence in the Edelbrock hardware.
Unless it’s a super budget deal, my preference with the import heads is to buy them bare and source my own parts.
B3422w5
Well-Known Member
Really..... what money difference is there? Its insignificant. The trick flows can be run right out of the box. Outflow the others. To get similar performance level you arent talking much difference at all.
To me the Golden rule is always do it once, do it right.
With the trick flow heads now available, i wouldnt remotely consider anything else in a standard type head.
Krooser
Building Chinese Free Engines since 1959...
Ported W-2's.... a 408 needs a lot of air.
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complete speedmasters not cnc'd are $1100 if that.... for a pair that are assembled.. that will function. Trickflows are great.. still over$2k for a pair not including the specialized hardware and rockers you need.
ProMaxx purchases the heads bare and do the rest of the work right here in the USA. What exact heads they are, IDK.
Best move right there.
Cheapest move? IDK.
I was also able to run my Edelbrock heads OOTB, some 25+ years ago when they were a new head and everything was under a lot of scrutiny and internet reporters.
Now, not so much from what I read ......
Will trick flow maintain there high level of quality years down the road????
The flow rates are only a few cfm above the ProMaxx heads right where it counts for the OP’s cam ????? ProMaxx will also substitute a spring you spec, like for the cam your going to run, out for there’s so you get what you need right OOTB.
Just sayin.....
The small cfm spread is close to nothing. 3 cfm @ 500 Or was it higher? Dang!
What’s right?
Your opinion?
The few cfm difference in the new TF head?
Im not flag waving for anybody here.
B3422w5
Well-Known Member
Right. 1100 for what? They wont make enough power like that to be worth buying to anybody remotely thinking about heading to a dragstrip
And what parts are they assembled with?
The trickflows you can get with PAC( trickflow) springs, TI retainers, quality valves and valve job ready to bolt on and capable of supporting 600+ horsepower. None of that true of what you are talking about. The head bolts are 80 bucks, and as far as i know, any rockers you would use on those heads could be used on trickflows. Headers and intakes as well.
Not picking on you bro, but in general Mopar people do tend to be cheapskates. Heard many people say that over the years, beginning to see why In the whole scheme of things, building a motor to make nice power no way i would scrimp on the most power making part of the whole engine. The extra quality and as assembled
parts are well worth the modest price difference
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B3422w5
Well-Known Member
Well..... we already are “ many years” down the road with trickflow stuff.
Several head guys i have talked to say the quality has always been outstanding, and the stuff is ready to run. They have made heads forever.
Dwayne on here being one such guy.
Being willing to bet that head you are talking about that flows 3cfm less than the trickflow wont be only 5-10 horsepower down at the track. Lot nore engineering and thought in that new head. Eddie head( or knockoff) are 20 plus years old and not a race head. Hey.... we all have opinions. Not saying mine is right or wrong.
NOt everyone can afford the latest greatest stuff my man. I would rather get my car running and drive it and have fun, then go out to my garage and see a car on stands not running for years on end.
Trickflow head studs. - Trick Flow Specialties TFS-61404304 bit more than 80 bucks I would say.
For me specifically, I would have to run the special Harland sharp rockers since I have a magnum block. another $867 on top of the $2200 and $200 studs. If I was rolling in dough I would get it all in a heartbeat. In fact.. my first comment even said I might just have to save up for a set of trickflows.
Also, the OP didn't mention in the first post how the car would be abused, he wanted a real world opinion. He got a real world opinion.
On the basic laymen’s terms of cfm X 2 = a good street strip power effort that can be obtained. It is a good mathematical equation IMO while not going full tilt on the build and it certainly not the ceiling.
-TF - 301 @ .700 = 602hp
-TF - 293 @ .600 = 586hp
PM - 284 @ .600 = 568hp
PM - 286 @ .700 = 572hp
Of course, only if your lifting the valve that high and building the rest of the engine to suite and chase the above goals.
If your not......
-TF - 301 @ .700 = 602hp
-TF - 293 @ .600 = 586hp
PM - 284 @ .600 = 568hp
PM - 286 @ .700 = 572hp
Of course, only if your lifting the valve that high and building the rest of the engine to suite and chase the above goals.
If your not......
Incorrect, the head is new. The company is old-ish, sort of. Will the quality continue? Past performance says yes and it would be foolish to use that as a future guide.
Ops, ya got it backwards. The PM head is 3 or so cfm less than the TF. But your words still apply.
I never said nor did Edelbrock ever say they were a race head.
Are you saying the TF heads are race heads?
Do you have to run studs?
Will another rocker work? IMM used what rocker again? I forget. It maybe possible to still get away at a reasonable cost to use the new but only slightly more expensive head.
Like I said able, how stout is the build and are the valves being lifted high enough to take advantage of the air flow?
The TF head has a better air flow curve.
I am with B2422W5 on the TF being a better deal. But only if your going “THERE” will it shine over the other offerings. Otherwise, it’s just a braggart item until It gets utilized well.
The rockers are designed for pushrod oiling to work with a magnum block. I could probably modify the Trickflows like I modified the Speedmasters to work with a magnum block. But thats a helluva lot more expensive messup than with speedmasters lol. The studs are all that is mentioned on the trickflow website. So i'm not sure if there are any others. If you're running an LA block I don't think the rocker issue is a big deal.
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