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AlteWagen Troll
Joined: February 23, 2007 Posts: 8509 Location: PNW
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bnam Samba Member
Joined: July 02, 2006 Posts: 2961 Location: El Dorado Hills CA/ Bangalore, India
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Posted: Tue Nov 22, 2016 9:49 am Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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71 DP head pics. This it the 3-4 head from my 71 1302LS with original AF series engine.
Some numbers stamped on it?
What do these number mean -- 18, 1, 4?
#2 is cast in reverse. The other head has #1 cast on it.
#2 stamped on this chamber and #1 on the other
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AlteWagen Troll
Joined: February 23, 2007 Posts: 8509 Location: PNW
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Posted: Fri Sep 22, 2017 2:26 pm Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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Here is the latest update
Ive reached out several times to the Tims with no response, anyone have any flow data on the super street, ported super street, or 041?
as always if there is an error or any additional CH data that you would like to see listed please let me know. _________________ Grapes of Wrath $200 Engine Rebuild
Official Dual Carb Thread
Cylinder Head Quick Reference Sheet |
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AlteWagen Troll
Joined: February 23, 2007 Posts: 8509 Location: PNW
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AlteWagen Troll
Joined: February 23, 2007 Posts: 8509 Location: PNW
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Posted: Thu Jan 11, 2018 12:46 am Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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I recently found out that DRD is no longer in business and has joined with EMPI. Since Im not sure whos CNC port design EMPI is now using Ill remove the DRD heads from the list on the next update The old sheets with flow numbers will still be in my gallery if anyone is interested.
With EMPI having their new head on the market Ive requested data several times with no reply. Ive heard that at SEMA they were saying that their heads are completely cast and machined in the U.S.A. Does anyone have any literature or data on these new heads? _________________ Grapes of Wrath $200 Engine Rebuild
Official Dual Carb Thread
Cylinder Head Quick Reference Sheet |
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vwracerdave Samba Member
Joined: November 11, 2004 Posts: 15334 Location: Deep in the 405
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Posted: Fri Jan 12, 2018 12:01 am Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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Don't remove DRD from your list. The information is still usefull for people that do have his heads.
Empi bought all the CNC machines from DRD so they may still use his programs. _________________ 2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS
1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK |
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Vanillagurilla Samba Member
Joined: November 21, 2017 Posts: 1061 Location: California
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Posted: Fri Jan 12, 2018 1:49 am Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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Empi gtv-2 stage one cnc ported as they came out of the box. 40x35.5 ss valves, dual springs, chormoly retainers and locks, 170 cm, 72cc chambers.
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[email protected] Samba Member
Joined: August 15, 2002 Posts: 4394 Location: Brew City
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Posted: Tue Jan 16, 2018 4:06 pm Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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AlteWagen wrote: |
I recently found out that DRD is no longer in business and has joined with EMPI. Since Im not sure whos CNC port design EMPI is now using Ill remove the DRD heads from the list on the next update The old sheets with flow numbers will still be in my gallery if anyone is interested.
With EMPI having their new head on the market Ive requested data several times with no reply. Ive heard that at SEMA they were saying that their heads are completely cast and machined in the U.S.A. Does anyone have any literature or data on these new heads? |
I know for a fact that they are NOT cast or machined in the USA.
They are CNC ported and assembled in the USA. _________________ Please "LIKE" us on facebook to see what we are working on.
https://www.facebook.com/mofoco?ref=ts&fref=ts
www.mofoco.com
Cylinder Head Reference Sheet |
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AlteWagen Troll
Joined: February 23, 2007 Posts: 8509 Location: PNW
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Hustlers67 Samba Member
Joined: September 21, 2011 Posts: 263 Location: Sydney, Australia
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Posted: Mon Feb 26, 2018 8:10 pm Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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Keen to see some numbers on the EMPI GTV series heads. Come on EMPI!! |
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modok Samba Member
Joined: October 30, 2009 Posts: 26848 Location: Colorado Springs
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Posted: Mon Feb 26, 2018 11:23 pm Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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EMPI heads now are available with the Shawn McCarthy CNC sideways D shape ports, AND the DRD design tri-ovaly ports.
Check out appletree they have pics of them all.
Don't know if that's temporary or what, but in any case it will be confusing.
Maybe EMPI will try to catch up to cb?
When I checked out the EMPI heads when they first came out, IMO, they were about ten years behind. |
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AlteWagen Troll
Joined: February 23, 2007 Posts: 8509 Location: PNW
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Posted: Tue Feb 27, 2018 2:22 am Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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modok wrote: |
When I checked out the EMPI heads when they first came out, IMO, they were about ten years behind. |
Were they the old Autolinea GO- series or these new castings like in the pics above?
I always thought that it was a bit strange that Autolinea made custom castings for both CB and empi but empi never had their own "044/GO4". Seems they cheaped out and just used the existing GO3 for their performance head offering. Thinking about it a bit, I guess the early 044 really didnt have any differences in the casting compared to the GO3/041. _________________ Grapes of Wrath $200 Engine Rebuild
Official Dual Carb Thread
Cylinder Head Quick Reference Sheet |
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modok Samba Member
Joined: October 30, 2009 Posts: 26848 Location: Colorado Springs
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Posted: Tue Feb 27, 2018 2:44 am Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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They were as pictured above, empi's "own" casting, that was probably 3 years ago. |
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veeweeman Samba Member
Joined: December 20, 2009 Posts: 940 Location: New Port Richey, FL
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Posted: Sun Mar 25, 2018 3:32 pm Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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I don't have any pictures but just received my new CB 044 wedge port 42x37.5 CNC heads with port match intake manifolds and they look top notch!..my engine builder was very impressed with the quality of these heads. ..CB claims that they run cooler but time will tell? ...I will update later. |
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Bob Brugge Samba Member
Joined: April 09, 2015 Posts: 721 Location: Missoula, MT
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Posted: Sat Jul 14, 2018 1:34 pm Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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I love this thread, it lacks info tho. Can you please add a column that shows what sizes are good for what? I would love to know what the optimized head is for say a 1776, or 1679. I would imagine the same info would be helpful for the guys with the bigger displacement engines.
Of course I want the biggest ones they make, but they prolly wont work on a stock configuration.
Its great that a head can flow 200+cfm, but what do you need behind it? I am tempted to build either a 1776 or 1835cc sp motor, but don't want to screw up my sp heads by having them opened up and then not have enough volume to flow as much as it can. _________________ Keep on Dubbin'! |
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AlteWagen Troll
Joined: February 23, 2007 Posts: 8509 Location: PNW
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modok Samba Member
Joined: October 30, 2009 Posts: 26848 Location: Colorado Springs
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Posted: Sat Jul 14, 2018 5:43 pm Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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Single ports are neat but they are very different far as HOW they breathe.
With your usual 2000cc+, dual idfs, ect, kind of engines, a lot of folks find that high velocity ports + wild cam makes a real fun street motor, so we are always looking for MORE, myself included!
but with SP it's quite the opposite.
You have to keep the cam duration short, and you almost can't port them too big. Stock DP intake is about 29mm, and a SP intake is about 27mm, but IMO they goofed, it really should have been the other way around. |
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AircooledTony Samba Member
Joined: September 06, 2017 Posts: 6 Location: New York
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Posted: Thu Aug 02, 2018 10:34 am Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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any info on the cylinder head spigots for the type iv 1700, 1800, 2000? |
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modok Samba Member
Joined: October 30, 2009 Posts: 26848 Location: Colorado Springs
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Posted: Thu Aug 02, 2018 6:38 pm Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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What's a spigot? And what do you need to know about it? |
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oprn Samba Member
Joined: November 13, 2016 Posts: 12890 Location: Western Canada
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Posted: Sun Aug 05, 2018 4:22 am Post subject: Re: VW Cylinder Head Quick Reference Sheet |
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I'm not sure what the "spigot" refers to either but it would be very useful to have type 4 head data in this thread too. |
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