Brodix cylinder heads for the Duramax
- Thread starter COMP461
- Start date
$9,000 full race ported Brodix
Yeah, f**king stupid what they want... That is FAR from reasonably priced compared to stock ported and worked heads.
It is. But with them being the only ones in the market they can charge whatever. And people will pay it.
Well, a tiny minority will. The real problem is the company's don't seem to appreciate the amount of business they could really do with some what reasonable prices. They could sell an order of magnitude more heads with a price that is on this planet.
How much are the valves? I see the bare casting and CNC ported castings say the come with guides and seals. I can't find anything on the valves though. Anything in the rocker assembly need changing since the valve centerline is moved alittle bit?
X2. And what are the flow numbers between different stages of the head? (casted, ported, extremely ported, etc.)
You get about the same cfm improvement in these vs a stock set getting ported. That would be around 40-50 cfm.
The fully CNC ported heads are close to 100 cfm over a SoCal CNC'd stock head... I believe Guy used to say around 260-265 cfm intake, I've heard 350 cfm on max effort ported Brodix.
100+ over a stock worked head is what I have heard from a few guys. One person even said he got way over 100 CFM over a worked stock head.
The street cast heard was in the 230's exhaust and 2 70's intake. The ported heads picked up in the 50-60 cfm range over the as cast head. That puts you in the 100 to a little better than a stock ported head. Sorry you misunderstood what I was trying to say. Either way there is a huge difference in flow period.
I don't think they flow as much as ppl think. 270i and 235e and thats with .700 lift on there cnc ported. But I've heard from other people they expect 380-390 out of the super duper brodix. I dont think they get that.
How come we are still flowing heads at 28 inches?
I think I will be drawing graphs of these flow specs presented by Guy and others to see how the 'flow' of the increases proceeds.
I think I will be drawing graphs of these flow specs presented by Guy and others to see how the 'flow' of the increases proceeds.
So if these numbers are @.700lift that is great. But what is the realistic valve lift on most street / drag trucks ? And Are pulling trucks using this much lift?
I know somewhat about gasses but I am still learning on these engines.
Isn't most stock lift cams around .390ish?