PMO Carb Manifold Height Options

[defianty]

The engine I have for my six conversion is a 3.0 and was rebuilt and used as a spare for a guy who had an original RS. The engine was used whilst the RS engine was rebuilt. Once thing led to another and he only covered 1,000 miles with the 3.0 before the RS was complete.

The 3.0 had PMOs and I bought them with the engine. When I collected the engine all of the ancillaries were boxed separately and only today, almost a year later, when trying out the carbs for size I thought to myself - "Those look tall!"

Amongst the paper work I can see the 'Tall' manifolds were ordered and a quick google has revealed that these are going to be too tall for a 914, they measure 100mm. To big?

I'd speak to PMO themselves but I'm not sure how they'd be as I'm not the original owner. That and I don't know how to send a fax in 2017!

[defianty]

On an original 914/6 I had to run the short air cleaners (911 Air conditioner K&N)
If you have a -6 conversion your engine height will vary.
I was not aware of a short intake made by PMO...if you find one please report back.
The original Porsche carb manifolds will most likely require a a spacer to block off the injector cut out on the head and probably need to be bored to match the intake port.

Probably not a short one exactly more like just a standard height as Lucky9146 has just bought.

You need to run longer studs in the heads for the PMO's they should have come with the manifolds.

Thanks Lucky9146, the carbs were just resting on top of the threads in the picture and not pushed down. I think there's plenty of thread there. (IMG:style_emoticons/default/biggrin.gif)