Fan Shroud, Option A or B Options

[930cabman]

Fitting a 2.7 into a Palma Green example from Cali, engine was built by Eksten. I have gathered a couple fan shrouds, which if either is more effective for cooling the oil,

A:

Or B:

Also, when fitting the intake manifolds for Weber 40 IDTP it seems as there is more gap between the manifolds and the fan shroud. Is this gap sealed?

Thanks

[Retroracer]

Hi - I'd suggest the green one will perform much better; looks like the black shroud has been made/modified to work with external oil coolers only. Of course, if you are planning on an external oil cooler, then the black one is the better choice.

There is a set of phenolic insulators / spacers that should sit between the heads and the manifolds. This fills the gap somewhat, but more importantly, minimizes conducted heat transfer from the engine to the carbs. You can buy these from a couple of sources, don't forget the extra gaskets too.

If you don't fit these and idle the car in hot weather, you may see clouds of gasoline gently boiling up from the carbs in the rear view mirror. Ask me how I know.....

- Tony