Strange Cylinder Head Question PLEASE HELP

[Frederik]

I have a nos Brazilian longblock engine with those heads and dished pistons. The thread I've asked about it years ago is linked to on page one but the pictures got photo..ucked. Still stand unused in a corner of the garage, but now I need a new engine in my pickup (1600) so came to think about it today and found this thread. If I read the mahle chart correct compression with dished pistons is 7.5:1 and were used with gasoline?

I've also read that they were fitted with dual carbs when used in Brazilian type 2 is that correct? Do you think a dual setup of kadrons or idf40 (what I have) would work or are they to big for the stock engine?

[Jacco Verveer]

thanks for the replies

that mahle data was gold

found nos matching cil/pistons

[PumaVW79]

[Jacco Verveer]

without matching cilinders/pistons? i do not have them

and can i use normal gas/fuel?

[nsracing]

Those are sweeeeet heads!

So what seems to be the issue of using them? They will work fine.

Just measure your chambers and top of pistons to figure out your compression ratio. Go from there.

[Jacco Verveer]

Pistons look nice but not so keen on running E85

[PumaVW79]

[midtravelmidengine]

[miniman82]

Those dished pistons and stock chambered heads would be great for boosted apps.
_________________
Build thread: http://www.thesamba.com/vw/forum/viewtopic.php?t=212747

[williamM]

How much is alcohol now --if you make it from old lawn clippings
_________________
some days I get up and just sit and think. Some days I just sit.

opinion untempered by fact is ignorance.

Don't step in any!

[DeathBySnuSnu]

Or
Build a dedicated E85 engine.

[mark tucker]

if the chamber is in fact too small, then just open it up, unshroud the valves to start with, then cc and see how much more you want and just do it. hell nikie didnt get where they are by sitting there wishing they could fly through the air.....they had to get pumped first. I see zero issue with using a copper head gasket. and I wouldent run them with out them. dont go wide on the deck clearance,just do the needed chamber work or send them to somebody that can. not realy that hard to do..if you have the stuff to do it with.

[Pruneman99]

Maybe someone could dish some pistons in the shape of the combustion chamber and they could be used? Not sure if there is a piston with a thick enough top to make that work or not. Maybe one of the machinists could jump in on that. Just an idea.

[mark tucker]

other than small valves and rust on the seats whats rong?do they use a longer valve or is the engine just narrower?/head shorter?

[PumaVW79]

[Jacco Verveer]

was hoping to have these as spare but didnot look at the chambers:)

no way off using these ? because i now need heads Sad

[R-Baja]

AlteWagen, did you ever compile a photo thread of all the various cylinder heads?

[R-Baja]

Hot VWs Magazine did a cylinder head buyers guide in one of their issues, December 2010, and it shows the 6 fin head made in Brazil with 35x32.5 valves and high compression combustion chambers. Original VW/AUDI casting.

[AlteWagen]

Thought I would add this thread for more info on these heads

http://www.thesamba.com/vw/forum/viewtopic.php?p=6863065#6863065

[modok]

Is anybody crazy enough to use them with 94mm WBX pistons and rods