Brodix head
 

Hi all
Just letting lookingfor thoughts on brodix alum oval port heads. Thought I had set of edelbrocks but that deal fell through. Where do the brodix rate? Thanks pat

Brodix are top of the line heads together with Dart and AFR. Not sure I understand what you mean by where do they rate. Quality, price?

Which heads are you looking for?

Hey razor,
Looking for quality, and it sounds like I'm the right track. I will get the part info out shortly. Thanks

Brodix are far better than the edelbrocks on larger cu in motors. The edelbrocks are good for the price and smaller motors. also gm perf heads are edelbrocks.

Glad I could be of some help.

Oh yes, you are on the right track. Some builders prefer Dart over Brodix or AFR and vice verse also depending on application. You are in good hands with Brodix. They are in a different league than Edelbrock. Depending on what you are looking for, also take a look at the AFR heads and the Dart heads.

Brodix, Dart, great heads. Check with your engine builder for oval vs. rectang ports.

Fresh water or salt?

Recommend closed cooling with salt water.

Wannabe

Builder is going to go with oval port heads and engine started life as 454, currently its bored .60 over he's going to take it another .10 over. Going to go full roller, scat crank, holley 850 marine carb, msds.

Also I'm going to paste some comments from builder below "my*intrest was in the uncoated components. we discussed corrosion. key is a quality electrical ground system for the motor when installed in the boat. also the fogging system is well worth the effort"

I haven't seen many discussions on elec ground system. He is also going to add some slick kind of fogging system to engine.

And finally its a fresh water envir.

Might think about a stroker if you're buying a crank.

x2

X3...Forgot to put that in yes we are strokin it.



:eekdrop:

Not that it matters but I like the Brodix heads, you'll like the stroker motor.

I would scrap the Brodix heads and go for the AFR 265 ovals. The Brodix ovals were the best until the AFR's were released now they're second best. For your heads and valvetrain I would call Marine Kinetics, his prices were better than anyone else when I was last looking. Plus you'll get a custom cam. I used Bob on my last engine build, not only did I learn a lot, I ended up with one great engine that made power than other cam designers said couldn't be done in a boat. I'm sure others will chime in and I know they will all give Marine Kinetics two thumbs up Here is their number, do yourself a favor and call them before you make any additional moves! 585-654-8583

Hey guys thanks for the advice and input...

I've got some more info on the brodix, wanna also no if this is a good choice? Below is the info from builder

"oval port alum. heads, 270 cc intake runner, 119cc on the chamber size. rpm range 200-6500. right where we want it and with 9.5;1 compression."

What cu/in engine??? Are you not going to be over 500? They will not flow to 6500 IMO.

Think the final cc is 498...+ I'm runnin a b1...so wanna it to be a touch over 500hp. I'm guessing its going to spin it 5200-5500

What boat are these engine(s) going into?

Regarding the corrosion of the alu heads, have them hard chromate surface treated . I know dart does, but I think Brodix does as well. For 500 hp, I'd think you should look into the Dart Pro1 275 oval marine heads too.

Just for comparision, The engine that I used the AFR's on was 439 CI. I had a custom cam, AFR heads and Holley HP carb which was flowed at 830 CFM. My engine made 1.2 hp per cube. On a 498 with the same set up it would be 597 hp. This engine idled perfectly at 700 rpms and exploded when hammered from the 3000-4000 rpm cruise. Do yourself a huge favor and call the number I posted. I'm not suggesting you use a different engine builder, but it sounds like your looking for some solid advise. You'll get no better advice on your build by calling Bob first. He sells Brodix and AFR heads and he'll explain the advantages of the AFR.

How about this 454? :drool1:
http://store.gmperformanceparts.com/store/SelectProd.do?prodId=8190&redir=true&manufacturer= GM&category=Engines&name=LSX454%20Crate%20Engine&m odel=<!--19244611-->

Going to have my engine builder call bob thanks for his info, should be hittn dyno in 3 weeks

It will be going into repowering my might powerquest!
:party-smiley-004:


[QUOTE=kvogt;3634476]What boat are these engine(s) going into

Something to compare, http://www.brodix.com/heads/raceritebb.php http://www.airflowresearch.com/index.php?cPath=68_111

Any of you guys have any input?? I am looking to throw a set of the AFR's on my boat with twin SBC's and I am wondering if I should run the angled or straight plug.

I am thinking the angled plug will give way mor clearence to the manifolds, as the factory heads have staright plugs and it is close!!

Thanks.

so it is going to be in the 492-ish range? i was going to ask...why does noone use oval ports? they go straight from round ports to rectangles. from what i hear, the square port doesn't even start to flow until 6000 or so.

ssshhh......

http://i43.photobucket.com/albums/e3...ne/th_port.jpg

I was thinking maybe this was a very heavy slow boat and thats why they are stuck on oval ports, but that is not the case. I run Brodix BB3 EXTRA-0 331cc oval ports on my motors but they are much larger than the std oval port type heads. I think any of the Dart, Brodix, AFR etc small rectangular port heads would also be a good choice.

You and Rookie can you say------Roval?

LOL, I might just use that.

Rectoval

The AFR roval ports!

actually the REAL oval port from the 781 head and all the 396's from bygone eras are the standard oval port. when it became a truck only motor they dreamed up this tiny little round thing and called it SMALL oval port. the orig ovals are nearly as big as rectangle ports and are good for 600+ hp with 2.19 valves and some porting. of course, you can get 500 out of the peanut port head with LOTS of porting.

sounds like rear-end medicine....

Turn your head and cough..

Oh chit.. here we go again.. :lolhit:

Better get out the toast so you can spread that peanut butter!:duel:

Chit
 

I like it when the chit starts!:daz::lolhit::bunnydance:

Haxbyspeed, This sounds like that guy that came over from some car site and was making very tall claims backed by HIS further dyno claims. What was that jomoc's name?

:hijack:

Are we talking about someone mentioned in this little thread? Isn't Cstraub the "king" of peanut heads and bad cams?

http://www.offshoreonly.com/forums/g...-colorado.html

Getting this thread back on track, Hey Paintman, what is the latest?

Might wanna give a phone call to JIMV on the board here. He has a new aluminum casting that is supposed to flow [email protected] lift. Im pretty sure Jim has always been into the smaller runner, high velocity type of heads, which just may be the ticket with a engine of your size to make some nice power.

However, if 500-525HP is your goal, I dont think you'd have a problem using any of the mentioned heads with the 498CI and a good roller cam. Well, maybe except for the circus peanuts!