about time for some new head designs isn't it?

[Jim Ratto]

guys, how about a die cast head with VW fins, and valve cover rail, but with S/F or "spread port" intake port AND angled exhaust ports. Get away from the stock Volkswagen intake flange design and get some port area and a nice straight shot into from butterflies.
Longer valves?

[Zach Gomulka]

I like it. A type 4 intake flange would work good for this, don't you think? Then you already have intake manifolds available.

[Jim Ratto]

I like it. A type 4 intake flange would work good for this, don't you think? Then you already have intake manifolds available.

I like it. 

[stealth67vw]

How bout the MS 230 heads? They don't have angle exhaust ports but everything else your asking for and they use available Super Flo manifolds. They claim 15% more fin area than an 044 and 50% more than S/F, A/F or C/E heads.

http://www.jpmotorsport.se/s/ms230.htm

[Diederick/DVK]

I hear those heads cost as much as I paid for my 67 five years ago. 
Nifty ideas tough, carry on. 

[Jon]

Imagine how long it takes to machine those fins... 
You get what you pay for...

[JS]

I hear those heads cost as much as I paid for my 67 five years ago. 
Nifty ideas tough, carry on. 

How much does it cost to get the same HP number out of a set of CB wedgeports? As much as a '67, I'd guess... 
Last time I checked they were around $3200 for the pair.

[Diederick/DVK]

i'm not expressing any critique on the heads themselves. as far as i'm concerned these heads are astonishing, but so is the price. i got the impression jim was looking for something slightly more accessible, say, in the range of ultra wedgeports? but i might be wrong.

[JS]

You get what you pay for...

 

[Jon]

With S/F or "spread port" intake port AND angled exhaust ports.

If they in addition to be angled out 45 degrees were angled 45 degrees down, you could have shorter exhaust... a plus for higher rev applications...

[Tomas/DBR]

Anyone who know more about these DRD heads?
http://www.thesamba.com/vw/classifieds/detail.php?id=828811

[wph]

Old skool... by Jeff Denham. Like a lot...

[TexasTom]

Dang thosa are FINE!

Jeff is the MAN.

[Lids]

here you go:

Pat Downs said:

We will be releasing our new cylinder head in a few weeks. The head is our Strip Dominator. We went in with Autocraft and reingineered the 910, adding many improvements. The head will come CNC ported with 50x38mm 11/32 titanium valves, titanium retainers, titanium locks, barillium seats. I will post flow numbers on our website next week. I can say that the head flows over 300cfm@25" in a 94mm bore.The head flows extremely well from .100 lift up to .800 I can post some pics if your interested. I am really excited about this new head. A new manifold is being done that will require no welding and will also come CNC ported. I expect pricing for the completed heads with CNC porting, CNC match ported manifolds and a new sheetmetal type valve cover to be in the low $3,000.00 range.
Pat Downs



The first run of heads are going to be 94mm bore with 50 x 38 valves. Our product line is really based around the stock stud pattern so we wanted to do the first run as 94mm only. You can run up to a 96.9mm bore with the stock stud pattern. One very nice change we made to the casting is a solid rocker arm pedestle that runs accross the entire length of the rocker box. This strengthened the head and allows a broad range of rocker arrangements. I am currently working on a rocker arrangement that uses 2 shafts, each having 3 mounting points. Rocker ratio will be 1.6, 1.7 and maybe 1.8 not sure on the 1.8's yet. I am also working on a valve spring that will set up like a flat tappet spring using 1.800 installed height but will allow lifts to .800 with a roller cam. This way, we do not have to run two different length valves if a roller cam will be used with the head. I will get some pics posted later today. Here is the flow chart on the head. I flowed the head three ways, 94mm bore with a full chamber, 94mm bore with a .200 deep flycut and 96mm bore with a .200 deep flycut. Reason being is that most people who buy this head will flycut it for compression. I also wanted the 96mm bore customers to see what the head flows with a .200 deep 96mm bore.
94mm bore with a .200 deep flycut
100-66
200-131
300-187
400-233
500-267
600-290
700-299
800-308
94mm chamber with a full chamber, no flycut
100-62
200-118
300-165
400-212
500-248
600-275
700-290
800-301
96mm chamber with a .200 deep flycut
100-71
200-138
300-191
400-238
500-272
600-295
700-305
800-321