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914-6 GT | profile | all galleries >> NP - The 914-6 GT Project >> NP 906 Twin-Plug Racing Engine #1 (The GT) >> NP 906 / 914-6 GT Twin-Plug Heads tree view | thumbnails | slideshow

NP 906 / 914-6 GT Twin-Plug Heads

These are the very illusive factory 906 Twin-plug racing heads The heads feature large 45mm intake ports, 39mm exhaust ports and valves that are nothing less smaller. The Porsche 906 racing heads come in a twin-plug configuration and use the smaller 12mm competition spark plugs

The heads are almost done, the last step in the restoration is lapping valve seats, installing the correct factory ATE valves, new springs and retainers and these will be done. More photos to follow.
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