[Hans-Peter]

Measured with a tape so give or take a few mm
Nord head and cam cover to top of oil filler 185mm
T/S head to top of oil filler 200mm, oil filler is about 10mm.

 

[Guest]

nord heads 4.390 inch/111.5 and TS 5.295 inch/134.5. 24 mm or .905 inch difference. numbers are from the manuals as I am replacing the garage and almost everything is boxed. the valve covers are the same at 2 3/4 high but you can reduce that to 2 1/8 by relocating the oil cap.

 

[damoj]

Stefano; I was measuring the stock nord head that is in there. To give me a reference point.

So it sounds like to clear the front of the valve cover with a TS head I would need a good inch.. and I am pretty sure I have that. So assuming the cooling can be figured out and routed, the only remaining issue is the intake setup. Are there any pictures of the stock intake setup on this head?

 

[robtechno]

What happened to this thread after the last post in 2007.
I am about to do a 75 with a 155 head.
Thank you.

 

[iachella]

This thread has taught me all I need to know about the 155TS head vs 75TS head. I do want to acquire a head someday, but am only passively looking as my 75TS is doing a great job in my Alfetta right now. If I do get one, I will keep the FI and make the runners curve down to fit under the hood. I do not like those aftermarket intakes because, while they make the intakes come out straight and may fit under the hood better, they seem to make a sharp turn at the head.

My hands are full right now with an aftermarket FI from Emerald that I will install on the 75TS and some cams and I will tune it for a big performance jump.

Thanks to all the contributors who had heads to photograph and share. This is a very powerful reference thread for all. I don't think there is much to add unless someone has done it and has some more pictures and experience of the job.

 

[sfourza]

155 TS head

If anyone is looking, I have a nice clean 155TS head for sale.
Sfourza

 

[robtechno]

If anyone is looking, I have a nice clean 155TS head for sale.
Sfourza

Where are you located?

 

[Dr.G]

Rear water outlet

Stefano;

My duetto is painted, so now I can put the engine in. I have the plumbing to side exhaust, but I'll still see how much room I'll have to put a block of aluminum on the back of the 155 head and tap it for exhaust water. I'll take a picture when I do.

I need to work out using 40DCOE's or the 45DCOE's I have.

Wes

{OK, I see. Now a question for Dr. G.: In your setup with the "T" above your elbows, wouldn't you want more capacity than just one row of (I'm assuming) 1/2 inch tube? Usually, what comes out of an engine is 1.75 or 2.0" radiator hose. Shouln't your three elbows pipe into once single log (I'd like a stainless tube to hook into but I don't have the welding skills so I haven't worked that out yet. Jim doesn't answer my calls. Jim are you out there??)that is larger in diameter?

Also, did you have to drill the three holes, or are there some plugs that uncrew? (Yes, there are three easy plugs to unscrew)I see in some of alfa of-corse's pics that there could be some casting plugs that are simply unscrewed?}


I think it would be easy enough to buy some stainless tubing and weld in some stainless nipples and probably maybe fabricate in a standard Alfa thermostat or use the TS thermostat. We'll see. Haven't got that far yet.

 

[sfourza]

Where are you located?

Durham, North Carolina

 

[robtechno]

Durham, North Carolina

Can give me your price and shipping to 80540.
Thanks.

 

[iachella]

Rob has first dibs of course, but can you let us know what is included? Is it complete - valves and cams? How about intake, exhaust, injectors, etc? Have you done anything to it since you've had it? Pictures? I could be interested if Rob isn't.

 

[sfourza]

155TS head

I'm asking $200 +shipping from zip 27705. For 80540, UPS ground is $62.
I got this head a couple of years ago in Italy, but never needed it. (It fits perfectly in a small rollerboard suitcase, and weighs 38 pounds.)
It had been cleaned and the surface lightly faced. It comes with valves and cam caps, but no springs, cams or induction parts - see attached photos. The combustion chambers, valve seats and valves all look good, though the exhaust valve seats are slightly pitted and will need grinding in.
Don S

 

[iachella]

If Rob doesn't take it, let me know.

Thx

 

[robtechno]

Stefano, you can have it. I will not take it now.
But please keep on posting.
I will have a post from my build up from the car and engine.
I will fit mine in a 64 TI, with a lot of other goodies.

Have fun with it.

 

[Dr.G]

Special intake, but if you are clever, it shouldn't be a problem. Jim Steck put mine together and I purchased one based on his recommendation that it had better flow than a 75TS head.

Seems to me it wouldn't have been that hard to make a flat plate covering everything and a common water collector up to a thermostat like a later version Weber Euro 2L or a 75TS style, but I'll jerry-rig a water collection system probably out the three sides and the rear of the 155 with hose.

 

[Biba69]

Okay, I just ran across this thread (waiting for primer to dry) and only read page one and four.

What is/are the advantage/s of the 155 TS over the 75's? The 155's sure sounds like a plumbing nightmare for US folks.

Not trying to cast aspersions on the 155 TS, just curious what it does that the 75 TS either doesn't, or can't.

 

[iachella]

Biba:

The 155 TS head is the last true Alfa head and the best. It is that last chain driven 8 valve head and had superior head flow tracts. How much better? Well, a little. It's not as much better than the 75 as the 75 is to the Nord, so for most, it's just as well to build a nice 75 TS engine and you can have all the power you would expect out of an Alfa 4 cylinder engine.

It is better by enough to make Jim Steck use it for his bonneville car so it is better for some. I have been intrigued by this last itereation of Alfas head and have dreamed of building an engine up from scratch with lots of bells and whistles. I have just acquired the head from above so I'll be chatting with Jim several times over the next few years.

As you know I have my hands full with the 75TS so this engine will be built in my garage nice and slowly with no set time in mind. I may even put in on a Nord block since I have one of those from the Alfetta and I don't have a spare 75TS block.

Maybe I'll make a turbo or supercharged engine out of it. Maybe it'll go in another Alfetta that we talked about in our last email exchange. I don't know it's destiny yet, but they are getting harder to find than the 75TS, so I'm getting this while it's available. One project at a time I know, but I can collect all the parts and plan ahead.

 

[robtechno]

155 head advantages?

The advantages are little, when you replace
the injection for Webers.
The downside of the okd 105 cylinder head is the bad
angle of the intake and exhaust ports. At the 75 TS head they are slightly
mote angled and at the 155 they are sofar angled the best.
But when you replace the intake manifold for an old style
horizontal one much of the advantages are gone.
The other advantage over the 75 is that you don't have the double ignition
assemblys. You can just do with one on the side.
When you do some work at the front of the cylinderhead it looks like a 105 head more than a 75.
I will try to post pictures from my build up
in the near future.

 

[robtechno]

155 head

Stefano,
Do you any idea what kind of pistons and
conrods you will be using.

Please keep us posted.

As soon as I know it I will posted here.

 

[sfourza]

155 vs 75 TS heads

FYI - here are some side-by-side photos of the 155 & 75 TS heads.
Sfourza