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Conversion Phenolic Kit, Large Port

Conversion Phenolic Kit, Large Port

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Availability: In Stock
Our Price: $112.00
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Product Description:

Conversion Phenolic Insulator Kit Large Port 
This kit should be used when fitting the Weber 40 IDA three barrel carburetors to the 3.0L fuel injected engines from the 1978-79 model 911 SC.  These engines have the larger, 39mm intake ports.

The intake ports on these cars have cutouts for the fuel injector, and the fuel injection intake gasket barely makes contact with the intake manifold, often resulting in an intake manifold leak.  The same goes for the original carburetor intake gasket, which just barely covers the port.

Our adaptor phenolic spacers allow you to use the fuel injection gasket against the cylinder head and then use the correct carburetor intake manifold gasket against the intake manifold.  This eliminates the possibility of un-metered air entering the engine, which would cause the engine to run lean.  The insulators will also greatly reduce the carburetor and intake manifold temperatures, which will help stop fuel boiling off and vapor lock problems. These insulators are 5m/m thick.

The Large Port Fuel Injection Adaptor Phenolic Kit includes 12 new nuts, 12 new washers and 6 intake gaskets, 6 manifold gaskets, and 6 conversion phenolic plates.  Use your original intake studs.

Manufacturer Information:

Partsklassik was founded by a Porsche®-trained mechanic with decades of repair and restoration experience.  We are a parts and components restorer, as well as a manufacturer of previously unavailable parts for vintage and classic Porsche® vehicles. 

We also carry thousands of parts spanning all systems of the air cooled Porsche® models, including the 356, 911, 912, 914, and 930.  We continuously add new products and services to meet the needs of the vintage Porsche® enthusiast.  If you don't find what you're looking for, we add parts to our website upon request.

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all it's ok thank you
Reviewed by DI FUSCO  F
4/12/2019 2:41:06 AM


  • 1978 Porsche 911SC
  • 1979 Porsche 911SC
[All vehicle fits]

Return Policy

Please inspect your order as soon as you Receive it. You must notify us within 5 days of receiving the order of any missing or wrong parts.

If your package is damaged in any way, you must notify the shipper (FedEx, Post Office, etc.) as soon as possible to report the damage.

All returns are subject to a 25% restocking fee, with the exception of pre-approved warranty returns, or if we ship a different part number than ordered. There will be no returns after 30 days of purchase. Non-warranty returns will not be accepted if the parts have been installed, damaged, misused, or are not sellable as new parts. Special order parts are not returnable except for pre-approved warranty. 

You must obtain an RMA number from us before returning your item. You must obtain the RMA by phone. Requests for an RMA number via Email will not be answered, as we cannot guarantee that any email will reach its intended recipient  All returns must be shipped freight prepaid, orders shipped freight collect will be refused.