High CFM heads - What would you chose?

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I hate to say this publicly, I can’t remember who I got the first set from here on FABO. Second set I got from Sam. There are a few fellas here that ran them. They have the rest of the wealth of information on these heads.

I hope those do you well. I sold them to buy my square decking setup. I really hated to let them go. I bought them from a guy in KY, and wish I would have picked up the R3 block he had, I didn't want to drive 4 hours...I just had him ship the heads, live and learn.
 
Was ironmike running Bloomer heads??

There was some version from Hughes first(don’t think they were BM..... I dont think they needed offset rockers), then the Bloomers, then some other hand ported RPM’s at the end.

I’d love to see someone else try the Bloomer heads on something, but I think the TF heads have that type of market covered.
If for no other reason than bang for the buck.
 
those aren't good heads. at all. Believe me
They will flow 340 on the intake. The STD. Spec head will flow 260-ish. They are the spec Mopar head for Wissota dirt late models. The Ford and Chevy all flow about the same... The 362 spec motors are pigs... might as well race crate motors.

The MC heads are pretty good. My buddy has a set on a dirt open motor. 725 HP and their is more to be had he sez.
 
They will flow 340 on the intake. The STD. Spec head will flow 260-ish. They are the spec Mopar head for Wissota dirt late models. The Ford and Chevy all flow about the same... The 362 spec motors are pigs... might as well race crate motors.

The MC heads are pretty good. My buddy has a set on a dirt open motor. 725 HP and their is more to be had he sez.

remember Ryan saying they dont make good power.
I know a guy who had a set on a 450 ish inch smallblock, pretty light car, roller, etc. went 10.0’s
 
Here’s a test I’d like to see(it’ll never happen...... but I’d still like to see it).

TF heads vs Big Mouth heads vs prepped/blended non-cnc ported Indy 360-1’s.
Mid level roller cam, 408/416 with flat tops, 1-7/8 headers, something like an HP 950 carb.
that would be a test I'd like to see as well with an unbiased shop doing the test
 
As long as we’re dreaming........Let’s throw the Bloomer heads into the mix as well.
Last I talked to him he seemed a little discouraged by the last dyno test. Getting going with new casting is in the works. Standard pushrod location - 202cc intake volume is all the info I had. Also working in a new offset intake pushrod set heads
 
Last I talked to him he seemed a little discouraged by the last dyno test. Getting going with new casting is in the works. Standard pushrod location - 202cc intake volume is all the info I had. Also working in a new offset intake pushrod set heads


And that’s what kills power. Where is he getting the volume?

If he was smart, he’d skip the stupid OE architecture head and focus on the offset rocker head.

Of course, he will go broke doing that, because only 1 in 7500 chrysler guys will run an offset rocker. For whatever reason, they won’t spend the money for it.

I suggest it’s a price verses value issue, and they love short term gain for long term pain.
 
It’s easy to armchair quarterback past events....... but......with regards to the Bloomer heads.....

If I spent all that time and effort developing those heads...... there’s no way I would have used the results from a build that underachieved with 3 different sets of heads as the basis for whether or not my design needed revamping.
The guy that designed those ports has gotten nearly 800hp from the Indy T/A style RPM head.
So it’s unlikely the port design just doesn’t work.
Not impossible...... but not “likely”.

Imo, the biggest hurdle at this point is....... for the price of heads and valves from Bloomer...... you can buy complete TF heads now.
 
It’s easy to armchair quarterback past events....... but......with regards to the Bloomer heads.....

If I spent all that time and effort developing those heads...... there’s no way I would have used the results from a build that underachieved with 3 different sets of heads as the basis for whether or not my design needed revamping.
The guy that designed those ports has gotten nearly 800hp from the Indy T/A style RPM head.
So it’s unlikely the port design just doesn’t work.
Not impossible...... but not “likely”.

Imo, the biggest hurdle at this point is....... for the price of heads and valves from Bloomer...... you can buy complete TF heads now.


I agree that Rod should have not let one builder slow him down. I still think there was other factors in why the power was off on that deal.

Refresh my memory...didn’t the heads that he used for the near 800 HP deal have offset rockers? And didn’t have Bloomer heads use a straight rocker?

Some of this stuff runs together and I get them mixed up.
 
I agree that Rod should have not let one builder slow him down. I still think there was other factors in why the power was off on that deal.

Refresh my memory...didn’t the heads that he used for the near 800 HP deal have offset rockers? And didn’t have Bloomer heads use a straight rocker?

Some of this stuff runs together and I get them mixed up.

Rod had both a standard and offset rocker head
 
Refresh my memory...didn’t the heads that he used for the near 800 HP deal have offset rockers?

Yes. As I said, the Indy T/A style head.
Mancini was selling an Ede version of that head as well.
(I thought that’s what Johnny Mac had on a motor he built)
 
Apologies for the delay gentlemen.
My W5 heads flow test results from my local race engine builder.
850DFE39-AF0E-45F5-8ADC-3C864CD98AC1.jpeg
 
Rob, I think this is one of those situations where you’re “racing flow benches”.

I find it hard to imagine if I flowed that Brett Miller ported W5 on my bench it wouldn’t break 300cfm.

I have a customer down in your area that had some Indy 440-1 heads he had ported himself flowed by a shop down there somewhere.

They were like 312cfm.
I told him that it was pretty unlikely they flowed that little.
I mean, a 5 min blend and a valve job and they’re in the 325-330+ range.

Some benches are just low...... and some are just high.

I think the numbers you have there are just low.

As it is with the dyno, the best use is to do before and after testing....... and not get caught up in comparing results from other dynos/benches.
 
But how else can you plan a build? Or speculate a possible horsepower number if you can't trust the numbers man :rolleyes:
 
I think I made that mention but it’s good to say it out loud again, yes, this I know and have previously said here (*I Think*) and in other threads, that I didn’t want to make an issue of it because comparing flow bench’s is a bad thing.

What we have here are;

2 different operator’s
2 different flow benches
Tested in 2 different states on 2 different days @ 2 different altitudes with 2 different bore size fixtures.
4.125 vs 4.03

I am certainly not trashing anyone. That’s not my thing.
The work done on the heads are really quite pretty and done by Brett who has a very good rep with porting in various fronts well proven.
On the headland work?
There is no complaint by me! None at all!

Being used to my guys bench is about all I’m used to. Having the numbers from his bench on my bore size helps me, my head, for direction on the build on what little twist I may want to do. That’s it. Nothing more.

When my guy, (Keith is his name,) looked and flowed the head he stated that he really liked the job. Thought very highly of the work and what he found on his flow bench. Even said to extend his feelings on it to Brett if I spoke with him again. And I did. Brett was Appreciate of and gracious about the matter. Very first class.

Keith is most eager & excited for me to get back with my W5 program and looks forward to seeing results. He said I would surely make some good power with them and not to be worried about my dashed hopes for more flow, that it would be really good and make some serious power. And I believe him!

Thanks for the words and the warning mention of flow benches comparing. I am appreciate of of it. This was more to show what I said above. The Who, what, where, when, etc... can have a large effect. And I think this needs to be mentioned more for new guys that are up-and-coming. Flow numbers are great, but they’re not everything. Oh wait, did I just steal yellow roses line?

LMAO!!!!


Rob, I think this is one of those situations where you’re “racing flow benches”.

I find it hard to imagine if I flowed that Brett Miller ported W5 on my bench it wouldn’t break 300cfm.

I have a customer down in your area that had some Indy 440-1 heads he had ported himself flowed by a shop down there somewhere.

They were like 312cfm.
I told him that it was pretty unlikely they flowed that little.
I mean, a 5 min blend and a valve job and they’re in the 325-330+ range.

Some benches are just low...... and some are just high.

I think the numbers you have there are just low.

As it is with the dyno, the best use is to do before and after testing....... and not get caught up in comparing results from other dynos/benches.
 
But how else can you plan a build? Or speculate a possible horsepower number if you can't trust the numbers man :rolleyes:
It’s not about trusting the original numbers but understanding them from a source I’m used to.
When Brett had his guy flow the heads, that’s what he got and I believe that they are 100% accurate. As well as my guys findings. When your used to something, stick with it. Because you understand it. It is a lot like speech, different or the same words can have the same or different meanings. Just the lingo between NYC and California had me re reading a post a few time. Now add an Aussie. Or Zealander. Or a Brit.
 
Being used to my guys bench is about all I’m used to. Having the numbers from his bench on my bore size helps me, my head, for direction on the build on what little twist I may want to do. That’s it. Nothing more.

If you have results from that same bench for your other heads...... obviously those should be able to be directly compared.

I tell people all the time..... the only flow numbers I really care about..... are the ones from my bench.
Because I know I can comfortably compare those to each other.
 
I thought my w5s where about low on the flow.
1,6 exh and 2,08 intake valves newly done.

IMG_20200215_161727.jpg


IMAG0870.jpg
 
But how else can you plan a build? Or speculate a possible horsepower number if you can't trust the numbers man :rolleyes:

I understand what you’re saying.
Like with the Indy head example I gave above.
If the numbers from the bench are way off from what most of the rest of the world gets...... they probably aren’t all that useful to most people.

In that situation, they called me looking for a cam.
After he told me what the numbers were.....and saw they didn’t really make any sense for what the heads were....... I ended up just giving his porting the benefit of the doubt that had I tested them here, they should have flowed similarly to other Indy 440-1’s ported to the same level.
 
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