Cast exhaust manifold Q

[Vegard]

My dad's E-type has got this US spec exhaust manifold with a connection to the inlet.
This winter we're planning on fitting a set of triple SUs and obviously, these bits have to be removed.

So, either, I could block the hole in the exhaust manifold with a big plate, or I can get a new manifold. I take it I only need one of them, although buying just one could prove difficult.

So the ultimate question is....

Can I just get a set of cast manfolds from somewhere?

Did these change over the years? The car in question is a 1.5 4.2

These?

http://www.ebay.co.uk/itm/JAGUAR-E-TYPE ... 3f28d6f000

I've been thinking about getting a proper tubular system, but I like to keep the noise down.

[abowie]

Yes get a set of cast manifolds. Check around on price; for example SNG Barretts have them for UK pound 125 each.

On dyno the tubular headers have been shown to not be as good with the E Type engine as the standard cast ones.

Be aware that regardless of what they are "enameled" with the coating frequently cracks and falls off..

[PeterCrespin]

You don't need to replace the manifold except for looks. There is no hole that needs blocking - just a flat area where the crossover sits.

Remember that just fitting triple SUs won't be enough by itself - you'll need the matching distributor with correct timing curve and vac advance.

Pete

[Vegard]

You don't need to replace the manifold except for looks. There is no hole that needs blocking - just a flat area where the crossover sits.

Remember that just fitting triple SUs won't be enough by itself - you'll need the matching distributor with correct timing curve and vac advance.

Pete

There has to be a hole in the exhaust manifold somewhere? What is the point of the big pipe if not? I've got a 123 dizzy which I hope can provide the correct advance curve. Very anxious to get rid of the clapped out Str?mbergs though ;)

[johnney]

hot air from around the exhaust manifolds, not exhaust gases !

[Vegard]

hot air from around the exhaust manifolds, not exhaust gases !

Seriously? What on earth is the point of this as long as the inlet is heated?

I should be happy though, that's ?150 saved :)

[johnney]

Because the exhaust manifolds heat up a lot quicker than the coolant water, which makes all the difference.

[Vegard]

Indeed, I can appreciate that.
I guess there is nothing stopping me from ripping the dead weight off then. I want the inlet charge to be cool as ice :)