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Tue Dec 21, 2004 7:02 pm

Another funugy question... I see descriptions and ads for 041 heads, 042, 044, etc. Is this serious nomenclature - does it really indicate something important - if so what? or is it just "mine is bigger than yours" syndrome??

Wed Dec 22, 2004 9:07 am

It indicates in general valve size and different "quailty" between these different heads...

041's are VW Brasil heads with bigger than stock valves, they have been around since the 80's not sure if anyone still has them "new" maybe a few pairs someone bought years ago and never used.

042's are made by MOFOCO and there are several threads on this forum about them.

044's are from CB performance and there is also a lot of info on them if you read / search some old threads.

Wed Dec 22, 2004 9:45 am

it's the casting number. 040,041 and 043 are stock VW castings.

042,044 and 050 are aftermarket castings.

The 041 is a Dog IMHO. The 040 has the best cooling, the 044 is the best HiPo street head, but there really is no performance advantage to the 044 unless it's ported. The 044 is cast for CB by the same company that amkes the stock VW castings in Brazil.

The 042 and 050 are cast by Mofoco in the USA. Some swear by them, others swear at them.

For me there's really only three casting you need to worry about. The 040,043 and 044. The 040 for stock engines and mild porting, the 043 for intermediate porting and the 044 for huge ports.

Wed Dec 22, 2004 6:54 pm

keifernet wrote: It indicates in general valve size and different "quailty" between these different heads...

041's are VW Brasil heads with bigger than stock valves, they have been around since the 80's not sure if anyone still has them "new" maybe a few pairs someone bought years ago and never used.

042's are made by MOFOCO and there are several threads on this forum about them.

044's are from CB performance and there is also a lot of info on them if you read / search some old threads.

My heads are part # 113-101-375A. Do you know where they are from? Terry

Thu Dec 23, 2004 9:56 am

Terry Cloyd wrote: My heads are part # 113-101-375A. Do you know where they are from? Terry

I believe that those would be stock German made dual ports.
I may be wrong though.

I think that the 040's are brasil and 043's are German made? or maybe the PN is the same no matter what the origin for that casting.

I looked as some I had out in the shop and there are many different PN's and several different letter codes behind the PN

Thu Dec 23, 2004 2:02 pm

043's are mexican heads and seem to be a stronger cast then the 041s and 044's are great for big porting but cb wont sell them bare.

Thu Dec 23, 2004 2:17 pm

NOwaterONLYair wrote: 043's are mexican heads and seem to be a stronger cast then the 041s and 044's are great for big porting but cb wont sell them bare.

Some of the ones I looked at earlier are 043's and are made by "Febi" and say made in Germany on them.. so as I alluded to earlier... PN alone does not necessarily make them from only one manufacturer/origin.

Thu Dec 23, 2004 2:49 pm

Terry Cloyd wrote: My heads are part # 113-101-375A. Do you know where they are from? Terry

part # 113-101-375A
Dual port 1600 heads for 1971

Thu Dec 23, 2004 6:31 pm

rterfert wrote: Terry Cloyd wrote: My heads are part # 113-101-375A. Do you know where they are from? Terry

part # 113-101-375A
Dual port 1600 heads for 1971

In 1974 I had Fumio Fakaya build me a set of welded heads and thats the part No. on the heads. I have two sets of welded heads with the same part No. The one set is welded and ready for porting. Both heads are -375A. Thanks Terry

Fri Dec 24, 2004 11:56 am

I have seen a few pairs of FF heads that an older mentor of mine used to run in the late 70's ealy 80's and they were made from stock heads.

Back in the early- mid 70's that is really all they had to start with...no other castings were yet readily available? And Fumio was one of the most well known that I used to hear people talk about.

http://www.google.com/search?sourceid=navclient&ie...mio+Fukaya

Tue Dec 28, 2004 8:02 pm

are 041 any good

Tue Dec 28, 2004 8:07 pm

vw40life wrote: are 041 any good With some work they can be.

Wed May 05, 2010 12:39 pm

might be a dumb question, didnt really read to hard over the thread, but..

Does someone want to tell me where these numbers are located?

Wed May 05, 2010 7:35 pm

We use the newer style 041 castings (the new Brazil casting, not the China version out now) Its the same as the 044 casting just with out the large sealing surface and with all the stock cooling fins but all the rest is exactly the same. In fact that's the only head we use, for street strip etc. I don't like heads that don't have full guide bosses,(some 040, 311, 113 and all 043 castings) when it comes to reliability. I know they are a lot easier to port(drive the intake guide back quick flap, drive it back) but I'm brain washed by Berg about the benefits of holding on to that guide over a grater distance. I guess when we do so many daily driven turbo combos you start to see what will last and what is just crap.

here is a pic of the numbers cast in to most heads, this one has 044 stamped/cast into it.

Wed May 05, 2010 10:48 pm

AJ, where are you getting the brazil 041 castings these days?

Sun Oct 25, 2020 11:39 pm

Is anyone familiar with these Mexican casting twin port heads?

Mon Oct 26, 2020 12:52 pm

Yes. The area that was faced off and stamped used to say 043

044 means.... "I wish I was an 044 casting?"
Pinocchio wants to be a real boy, maybe but probably no, and I doubt the head is going to re-cast itself.

Thu Oct 29, 2020 3:12 am

GEX more likely.

Thu Oct 29, 2020 8:38 am

The quality of certain heads which are available these days is much better, but I believe it was 041s which were "all the rage" back in the 80's. I believe I drooled over a set of 40 x 35.5 041s that the long gone Car Custom in Azusa CA would include on the 1776 long block I purchased in '86, for an upcharge. I couldn't squeeze together the funds for those heads and alas I never got the chance to mess with them.

Don't get too mad at me if I misstated anything as I'm going on my recollection of ancient events!