308 vs 328 motor?

Not sure if this helps or not, but when I had to replace the heads on my 328, I used rebuilt ones from a 308QV. I was told they were the same.

 

There was one of these done in the UK a few years ago and my recollection was that fitting the mechanicals was relatively easy but that the injection & ignition etc electronics were very time consuming to install - actually thinking about it was most likely an i not qv which might explain it

 

ISTR that the Mondi (at least the QV) has a hydraulic clutch. The 308/328 is cable driven but I would have tough it should be possible to sort that one out.

 

Convert to carbs?

 

I don't know how possible this is but I'm thinking use the long block (block and heads) and use your cars current intake/fuel system. It would save the hassles of the electrical. Maybe.

 

IIRC the 328 uses 1 sensor for the ignition against 3 for the 308, so get the complete ignition with it.
I'd certainly get the gearbox as well, aren't the final drive ratio's different?

Since you're now going away from original, a set of carbs on there would be sweet...

 

I looked at doing just this with my car . It would seem that the engine mount configuration changed when they went to the 328 . So you would need to put the 328 motor onto your box and with a set of carbs you would never rebuild your QV motor !!!!

 

If the heads are the same then the intake from the QV will fit the 328 - fuel delivery problem solved. The sensors are either in the bellhousing or the adapter not the block so mix and match bellhousings if there is a problem with the number of sensors. I would use all the QV controls, ignition and fuel and concentrate on putting the 328 longblock in rather than a fully dressed 328 engine. I guess its possible the block to gearbox shape changed so if thats the case use the gearbox but it wouldnt make sense that ferrari changed the locations of the 4 frame mounts. When ferrari went drysump like on a 355 they changed the shape of the block for the oil pump, the 328 isnt like that.

 

I'm not absolutely sure but I think the chassis cross rails changed and the 328 box won't drop into the QV . It's a while ago I looked at it and there was a problem ! The 328 motor will go straight onto the QV box . As Newman says you could mix and match bellhousings and clutch covers to get the correct sensors and a cable clutch .

 

what would you do with the slave cylinder operated clutch? change it to a mechanical or modify the pedal box to hydraulic? if you want a complete 3.2 motor/trans, look for one from a 328 rather than mondial, it would save you some hassles.

 

WEENIE

 

On an unrelated, related note, would a QV motor fit right in a 2V 308? Just a pipe dream of mine that would probably never come to fruition, but if it did.... I would be going with a carb setup so the fuel system would be relatively straight forward. Not sure about the actual fit, the electricals, and the water though?

 

Hi Christian,

I dropped a 328 motor out of a 1987 Mondial into my 1977 308gt4. It bolted straight onto the gearbox exactly with no problems.

Cheers,
Grahame