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Discussion Starter #1
hi everybody,

I'm new on this forum but I've to say that I've already enjoyed a couple of very interesting threads... this is my first post and I hope to not be eaten alive .... :) In particular I hope you will able to help me in fixing a problem

I own a 1966 giulia sprint gt 1600 veloce

my mechanic says that some parts of the engine are not correct, in particular the cylinders head. can you help me by posting some photos of correct 1966 536 engine?

As soon as possible I will post a picture of my engine.


thanks a lot, sorry for my poor english


giulia1600gt
 

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Just from the one photo you posted, the head looks correct to me. But, the photo really doesn't show the head very well.

Does your head have two "ears" - small loops of aluminum with 6mm holes - at its top/front? Your cam cover probably does not have the corresponding loops. Later Alfas had two 6mm bolts that clamped the front of the cam cover to the front of the head to help prevent oil leaks. So when a later head is installed on a 1600 or earlier engine, the loops will show. Might that be what your mechanic is seeing?
 

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Discussion Starter #4
thanks for the reply

yes, my engine has the two ears ... my mechanic says that the correct engine does not have the ears...
 

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This may come down to what year/month the car was produced.
Very early examples didn't have the ears, later ones did.
My blue GTV is an ealy example with Dunlop brakes and the boot lid release on the left side. It has the ears on the head and the early thin lower oil pan piece.
What is the chassis number ?
 

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Just to confuse matters, my car was produced in June 1965, and it has the lockable trunk release on the right hand (passenger) side. It is a Left Hand Drive car.
The brakes have been changed to the later ATE type, and the engine is a 1600 out of a '67 Giulia, so I'm sorry I can't help you there!
 

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Thanks for that !!
We are always a little short of confusion here. ;^)
 

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The front of the heads have markings to identify which engine size it belongs to

1300 engine: A circle with a vertical line
1600 engine: A circle with a squere
1750 engine: A circle with a triangle - later models have also a dot in the middle
2000 engine: A circle with a square and a diagonal line

A part from the engine type and number the engines can be identified by the distance between head and waterpump:

1300 engine. Distance between head and waterpump = 0
1600 engine. Distance between head and waterpump approx. 25 mm
1750 engine, first series. Distance between head and waterpump approx. 40 mm
1750 engine, second series, used on 116 and Alfetta cars. Distance between head and waterpump approx. 40 mm
2000 engine. Distance between head and waterpump approx. 40 mm

Engine number is stamped on the left side of crankcase, close to the fly-wheel cover. The early non Spica engine and type table is here.

Engine number Volume HP (DIN) Used in:
00502 1570 106 Giulia Sprint GT
0502A 1570 115/170 Giulia GTA/Corsa
00506 1290 78 Giulia 1300
00511 1570 112/170 Giulia TZ1/ TZ2
00512 1962 132 2000 GTV, Berlina, Spider
00514 1570 92 Giulia TI
00536 1570 109 Giulia GT Jr, Spider Jr, Duetto
00548 1779 118/122 1750GTV, Berlina, Spider Veloce
00559 1290 116/165 Giulia GTA 1300/Autodelta Spez.
00585 1570 95 Giulia S
00516 1570 106 Giulia TI Super
00502 1570 106 Giulia Sprint GT
00502 1570 106 Giulia Sprint GT


Erik
 

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Discussion Starter #11
thanks a lot erik,

but my problem is that I don't know if the erlier gt 1600 veloce had a different head whit respect to later cars..

The front of the heads have markings to identify which engine size it belongs to
My head is for sure a 1600 head and, if for istance it was a 1967 car, then the head would be correct for sure.


thanks for all the replies
 

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Hi Giulia 1600GT.
You can write to [email protected] and give your chassis no. and you'll get and answer like this

"Dear Mister Løye,

with reference to your request we are informing you as follows.

According to our documentation files, the chassis number AR 1820173 originally corresponds to an Alfa Romeo 1750 Spider Veloce (105.57), manufactured on the 4th September 1970 and sold on the 28th September 1970 in Turin, Italy.

The body colour is ivory, with black skai interiors."

Your engine type 00536 is a AR GTV (and Spider Duetto and Giulia Super) 109 HP engine, the early AR Giulia GT engine type was 00502 with 106 HP. NB! The name Giulia disapeared from the 105 Bertone Coupes then, so they were known as just GT, GTV, GTV 1750/2000, GT Junior (1300) and GTJ 1300/1600.

Even the same engine type, like your 00536, variuos small changes took place during production. I wasn't like if a change were done, all of the former spec engines would be put in production cars untill all were away and then the new spec engine introduced in production. The fitters just took the nearest engine of (hopefully) the right type and fittet into the body. The GT bodies were produced at Bertone's factory and came to the AR Arese factory and had all the mecanical parts fitted.
These cars were produced 35 to 48 years ago, and many rebuilds and engine changes will have taken place (many Giulia Berlinas and 1750/2000 Berlinas have donated their engines etc. to the more valuable GTs and Spiders). And AR never kept records which engine no.s were fitted to the chassis no.s in the first place.
AR wasn't the f*****g VW of Wolfburg :) where all was 100% recorded.
Erik
 

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I'll jump in and correct you !!

Doors and handles are right for the first series GT.
 

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giulia1600gt, I don't think anyone would question your head as early or late 1600 as long as it has the square in the circle on it. My late in the run GT Veloce had the two front tabs and the square but the Sprint GT head I had doesnt have the tabs or the square head marking. The GT Veloces had a mix of both types from what I have seen.


Your engine type 00536 is a AR GTV (and Spider Duetto and Giulia Super) 109 HP engine, the early AR Giulia GT engine type was 00502 with 106 HP. NB! The name Giulia disapeared from the 105 Bertone Coupes then, so they were known as just GT, GTV, GTV 1750/2000, GT Junior (1300) and GTJ 1300/1600.
And they were called the Giulia GT Veloce after the Sprint GT.
 

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Discussion Starter #17
lot of valuable knowledge on this forum ... thanks again... I hope to be able to contribute in the future

I've already written to the Archivio Storico and they are not able to answer to my question.. they suggest me to buy a parts catalog
 

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I'll post a scan out of my original parts manual from 1966 tommorow for you of the cylinder head page. Its at work so I can do it tonight. (Its 9pm here)
 

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Very early examples didn't have the ears, later ones did.
Absolutely correct.

But the transition from one style to the other did not occur on a specific date with a specific chassis number. It took place over a period of time. Not exactly sure of the time frame but memory tells me it was in the 1966-1967 range. Engines produced in the transition time frame may or may not have the ears.
 

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Discussion Starter #20
thanks

If can help the vin is

AR241173

and the engine number is

00536.00786
 
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