Engine Conversion from 1750 to 2000lt

[Ascari32]

I would have a rusty Alfa Romeo with twin carbies points and plugs before any Fiat Romeo.
Alfa Romeo 1.3 1.6 and 1750 engines had the same bore spacings. The 2.0litre has a wider spacing between cylinder 2 and 3. The outside diamensions of all the engines are the same so fitting a 2000
engine into a 1750 chassis is not an issue

Agree. I have owned from new 1750's and 2000's and I view the 1750 as the better engine. Silky smooth, revs its nut off. The 2 litres have more grunt, but you pay for it with a degree of coarseness the 1750 does not have. A Balanced 1750 with Colombo Bariani Camshafts is a thing of beauty. preferably with Dellortos. But even in standard guise is delightfully balanced.

Had a 156, 1.8 (1750) in later years and it too had a better balance to it than the 2 litre version. In a way, very similar to the difference between the 2.5 Busso and the 3.0, 3.2 Busso's. I would kill to have my old GTV6 Alfetta back! I have a very low mileage 3.0, 916 and as much as I love it, it's an affair, not a life long passion. The 2.5 too was balanced and fitted with C.B.s and on the Auto Routes in France, nothing could live with it.

[GG105]

Really hard to know how to respond to threads like this.

I have a 1300Ti with a warm two litre in it. It was in it when I bought it nearly 30 years ago. It has the usual stuff, higher comp, ported head, extractors, electronic ignition, etc, produces around 150+hp depending on the dyno you use. It also has very careful and effective suspension mods not including the Alfaholics lowered nonsense. It looks quite stock, but isn't. I also have a fairly standard stepnose 1600 coupe.

The result is a quick car - for 1970. Its drives really well, very comfortable and capable in modern traffic, it feels and sounds great but its not a fast car anymore. I also have a 997 Porsche Turbo with 480hp, 500hp with overboost. This is a fast car.

So what is a 105 series Alfa in 2020? Its a vintage car. It's also probably the best driving car of the 1960s, no small achievement. What they offer is a level of feel and communication modern cars no longer have. If you don't lower them too much and stick with skinny wheels you get to experience the essence of them and the genius of the engineering.

If you heavily modify them you don't really get a fast car and you lose a lot of what makes them special. To me its about respect, but, hey, each to their own.

[Ascari32]

I share your view. In modern terms, of course they can't compete. But there are very few modern cars that give the driver as much as these little jewels. There is a connection between the chassis/body and the mechanicals that define these cars like no other. That is what makes them so special. They are greater than the sum of the parts. Modify them too much and they become less.

I had a fantastic day on the track with a Lambo LP640, a Nissan GT and a 430 Ferrari as a birthday gift. The Lambo was utterly brilliant because it demands so much from the driver/pilot. Basically, it wants to kill you. The GT was anodyne - it wouldn't let you kill yourself. And the Ferrari, just a lovely place to be - behind the wheel.

The Lambo stands out for what it can do. But, beyond that, I couldn't live with it for too long. Performance is great, if one has the ability to exploit it and I do not. But a Bertie, a Berlina, an Alfetta GTV6 or a Spider 2000 - well they were made with people like me in mind.

They also had an incredible gift of persuading me I was in charge - that I actually could drive them well!