Typical brodix bullshit,keep coming out with new version of the same old.They should finish a set out with 2.450 valves etc like everyone does to them anyway.They should offer a on kill intake manifold to go with these as a package deal.Roll them some more like we always do.

 

Every time some one drags in some old or new Brodix BBC heads I wonder why the company that has been around since the start of aftermarket heads keeps doing the same ole thing. BB! BB2 BB2 ++++ 26 degree heads are obsolete as far as I am concerned. Yea they are cheaper than Dart, Profiler, AFR heads but just don't have the potential because they are still based ion an Chevy OEM 990 head from 1969 ish. UIf you don't care how fast yiou go, i guess that is not that big of a deal though.. I actually bought a bare set of the new old 320 Dragon Slayer heads this year for a bracket car, but they did not even flow what Brodix said, which was 30 cfm less on intake and exhaust of a stock Dart 325 head. Dolled them up and assembled them and they sold in 1 day, because Darts are not being made now or for the forseeable future I guess.

 

I agree. Brodix’s catalog is confusing. I think the only reason to keep BB2 around vs BB3 is that the exhaust isn’t raised.

 

Mark, the BRX has NOTHING to do with old style 24 or 26 degree heads?

"The revolutionary new BR X from BRODIX is by far the most powerful “as cast” conventional head on the market with a raised .300”, 444 cc intake port that flows 495 cfm! The exhaust port flows 305 cfm through only a 1.800 valve. This head features an efficient 100 cc chamber, as well as a valve angle rolled to 20 degrees. This new head is completely compatible with all existing 20° BRODIX components."

So looks like this is exactly the same as a SR20 head except that SR is .500 raised intake and these are .300 raised intake ports. Also BRX is 100cc chamber to the SR 95 cc. It has all the same specs and parts the SR20's have? Same valves, gaskets, valve size and angles, port cc's, everything the same as an SR20, but about $2,500+ less bare per pair.

 

Mark, the BRX has NOTHING to do with old style 24 or 26 degree heads?

"The revolutionary new BR X from BRODIX is by far the most powerful “as cast” conventional head on the market with a raised .300”, 444 cc intake port that flows 495 cfm! The exhaust port flows 305 cfm through only a 1.800 valve. This head features an efficient 100 cc chamber, as well as a valve angle rolled to 20 degrees. This new head is completely compatible with all existing 20° BRODIX components."

So looks like this is exactly the same as a SR20 head except that SR is .500 raised intake and these are .300 raised intake ports. Also BRX is 100cc chamber to the SR 95 cc. It has all the same specs and parts the SR20's have? Same valves, gaskets, valve size and angles, port cc's, everything the same as an SR20, but about $2,500+ less bare per pair.

the BRX are the as cast version the plus .200 in the intake height might be from the sr20's cnc machining but there are others out there that would most likely know more.

 

About time. LOL.

 

BRX is the as-cast version of the SR20. Little bigger port, little bigger (cnc) chamber. I think the .300 vs .500 is a misprint. They call for the same intake gasket, same intake manifold and in fact, the pics on Brodix website almost look like the BRX port has a cnc opening which they do for most of their as-cast heads. My bet; it's the same opening as the SR.

 

That was my impression also,

 

BRX is an as cast version of the SR20. Flow almost as good, a bunch less money. They work very well for an NA build when compared to many conventional heads.

 

Here is a set I just finished.

Superflow 750 Frustration. Ported Brodix BRX Maxing It Out

 

Here is a set I just finished.

Superflow 750 Frustration. Ported Brodix BRX Maxing It Out

Nice. What did it flow at 28” and at 0.700”?

 

I can say for Eric for sure, as the one's in the video seem to flow a bit more then a ported listed on his site. Ported numbers off his site @.700 is 481 and 301 exh.

 

Thank you Eric. Who's 5/16 valve did you use for that?

 

Just wondering could you run the BRX in a 4.560 bore?? I know they recommend 4.600 bore. And Im sure it will hurt flow# But i have the 4.560 now and would like to try the heads and then bore it to 4.600 in the future. Thanks

 

I did a set for a 4.59 bore with a 2.45 valve. No problem there. I've run Profiler spread ports with a 2.43 valve on 4.53 bore.

 

The BRX are just an “ as cast” sr20….

 

Well got the intake gaskets coming in to see how far off the Sniper tunnel ram is. Build for this is probably later this year???? November meeting for business will help determine the timeline.

 

How would something like these work on a pump gas street car? Way to big? Thinking 582, trying to learn. Thanks

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I’m getting ready to do a set for just that combo should make good power. They will not flow as much as this set because they don’t need to be that large but should make great power.

 

Swoop, I'm planning to use these on a pump gas street car 632. 1963 Corvette, the 2nd post has them in a pump gas street car too. Nyes racing has a 598 and 632 pump gas street car motors with SR20?? heads. Just of the top of my head.

Now I wouldn't try these on a 396 pump gasser street motor, but just maybe the as cast version would work on your 582.

 

Swoop, I'm planning to use these on a pump gas street car 632. 1963 Corvette, the 2nd post has them in a pump gas street car too. Nyes racing has a 598 and 632 pump gas street car motors with SR20?? heads. Just of the top of my head.

Now I wouldn't try these on a 396 pump gasser street motor, but just maybe the as cast version would work on your 582.

Yes I remember some old posts way back mentioned these heads have longer intake ports so when you see 440 cc it scares people but the added length adds to the cc port volume but its not like a conventional head hogged out like those real old dart 410s.

 

Awesome, thanks for the info guys.

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If you’re buying shaft rockers anyways, it doesn’t seem like there’s any reason you should use 24* stuff over these.

If you’re pinching pennys you might still do a stud rocker combo on 24* stuff.

 

Are you guys using offset intake lifters with SR 20 or BR X 20 degree heads?

 

no, no need for offset lifters or rockers

 

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Just curious on how you went with your pump gas build??

 

NOTHING done. Life changes and this got pushed off.