Evening all. I've been over to one of the Alfa forums, but they don't appear to be quite as adventurous as we all are here with doing silly things with engines. Those of you that either have done so, or know much about doing so, what if any mods are required to put the Alfa 2.5 24V V6 in a seven? For example, is a winged sump or a baffle required, or is the cooling system a bugger when standard? Anything at all will help me!

Doing a search for "Alfa V6" would be a start - plenty of posts on here.

use an alfa 75 , they were rwd , altho with a transaxle , couple of guys on here are doing it .

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Originally posted by Volvorsport
use an alfa 75 , they were rwd , altho with a transaxle , couple of guys on here are doing it .

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I looked into putting an Alfa V6 into my fury a while ago - there was an Alfa with a V6 (2.5) with a RWD gearbox back in the `70's , I tried to find out more from the Alfa owners club and they had never heard of it
There is a guy who has used this set-up in a Dax here

There was the Alfa 6, but they had the 12V, and I don't know how similar the block is. The gearboxes are also rare and since I want to tune the 24V, I may well just end up destroying a rare expensive gearbox.

Hmm, I think all rwd Alfa V6 have transaxle gearboxes + de Dion axle.

Perhaps the Alfa Rio box is a possibility

From memory the rwd Alfa has the box at the rear.
You MAY have to get the crank bored to take a spigot bearing as some of the fwd engines don't have the hole.
The bellhousing could be a problem.
Search out Owelly on here as he has put an Alfa V6 in something

Owelly and Johnmor have both done it, but they also both used the earlier 3 litre 12v V6. It may be there's no difference between the two engines, but since I don't know for sure........

Well.............it seems you have to do what I did - sit your chosen engine and gearbox in the middle of the garage floor and figure out how to bolt them together
If no one has done used the 24 valve motor before then its up to you to blaze that trail.....

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Originally posted by clairetoo
Well.............it seems you have to do what I did - sit your chosen engine and gearbox in the middle of the garage floor and figure out how to bolt them together
If no one has done used the 24 valve motor before then its up to you to blaze that trail.....

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Simon,

The 12V and 24V bottom ends are the same for gearbox fitting purposes. I bought an "unfinished project", which included a 2.5 12V (ex 155) and a 3.0 24V (ex 164) and an Alfa 155 in dozens of cardboard boxes! Both the engines have had the same gearbox fitted during the project, so I am certain they are the same layout.

Cheers R

PS

[Edited on 23/6/08 by rachaeljf]

The Alfa 12v uses the same block as the 24v so the bellhousing will fit.

Its what you connect the bellhousing to that matters. I mated mine to a type 9 using the bellhousing from a front wheel drive 164 and then made a conversion plate for a type 9 box. This keeps the hydraulic clutch and mechanism etc.

The electrics are simple for the 12v and the engine is sweet, very torquey but comes in with a fantastic howl around 4000revs. Makes a really quick but easy to drive car (if a little noisy, so tempting to hear that howl).

I have lots of pics in my archive.

alfa engine



Engine in car 2



engine in

Cheers John. Your archive has been perused many times already! So you didn't do anything to the engine itself, just made up the plate and away you went, as it where?

Thats about it, I used the sump from an Alfa 75, its designed for rear wheel drive and an upright engine. Aprt from that and a few miner things that was it. You could modify the sump froma 155 or 164 if you cant get a 75 sump.
I also used the oil pump from 75 to suit the sump and thats driven by the drive from distributer on the front of the block, I may change mine as the 75 dizzy is in a better place to suit rear wheel drive.

Do you have to use the different oil pump? Just with mine being a 24V it doesn't have a dizzy, and I think the pump is chain driven.

I only chaned the pump because i used the 75 sump and the oil pickup matched the baffles in the sump, You may be able to simply swap the oil pick up on the base of the existing pump or alter the baffles in the sump.
Im not sure how much ground clearance you have, I had to change my sump because the 75 sump is around 2" shorted than the standard 164 sump. You may get away with keeping the existing sump ,then there is no problem except if the engine is mounted vertically the sump may be designed for the engine sitting canted to one side. Did the engine come from a 156, I think it sat a little more upright than the 164.

It's from a 156. It's not quite upright, but I don't know how much difference there is between it and the 164 engine.

What have you done with regards to a spigot bearing? Is there one in the crank already, or will it need boring out to fit one?

[Edited on 25/6/08 by DIY Si]

The main thing with the 24v would be clearance i would have thought.

I'm not sure what the exact width is of the 24v, but i have only got about 10mm clearance to the chassis rails on my Gemini with the 12v.

I suppose it depends on how high you sit the engine.

Mine sits low with a home made baffled and gated sump, with an accumulator.

Owelly has been running his with just a chopped sump, and no accumulator.

The 24V isn't that much wider really. As long as I can get the manifolds to run in the right place it shouldn't matter. Hopefully.

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There is a guy who has used this set-up in a Dax here

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Hi, lots of info on the use of an Alfa V6 on this forum. I loved the sound and power delivery of my 164 12v. Don't underestimate 2 valve per cylinder engines - they give more low rev torque.
In Sweden Ronny Norkvist has made a locost from scratch using the difficult to fit rear transaxle from an Alfa 75 (not much room behind the seat of a locost!):

http://www.illustrera.se/konstruktion/2006-03/byggdagbok_200603.htm

Anyone got any experience with a Fiat Dino V6 ???

Cheers
Ross in NZ

Hi, the Dax link above shows a V6 from the early Alfa 6. It came with a ZF 5 speed and a separate Alfa bell housing. If you can find one of these it would be an easy fit. These ZFs have lots of gearing options and are used on Maserati Biturbos (gearboxes quite cheap in USA - EBay). Fiat even had a version of the ZF in their 2 litre twin cam 132 and GM in their Bedford vans!
Dino (Adelspyder) in South Australia made a custom sand cast bellhousing to mount a 164 V6 to an Alfa 105 gearbox and will make a kit up for people doing the conversion. It is tailored to RHD though since he canted the engine over to fit in an Alfa Duetto Spider. The Alfa Spider conversion is popular in USA too.

http://www.alfabb.com/bb/forums/engine-conversions/38223-alfa-v6-into-73-spider.html

Cheers
Ross