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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 >> NP 906 / 914-6 GT Twin Plug Heads - As Purchased tree view | thumbnails | slideshow

NP 906 / 914-6 GT Twin Plug Heads - As Purchased

ATE 3056 ~ Intake: 45mm x 111mm (lash cap type valve)

ATA 3057 ~ Exhaust: 39mm x 110mm (lash cap type valve)

Photos of the 906 / 914-6 GT Twin Plug heads I purchased from Bill Noon when he acquired the Bozzani GT from Howard De Haven. The racing heads will be restored to like-new condition. One of the heads experienced an internal combustion chamber explosion with what appears the plug electrode disintegrating, you can see the splatter on the valves https://pbase.com/9146gt/image/156396281 and the head chamber as well https://pbase.com/9146gt/image/39255436

By the way, I found five used 906 ATE #3057 Exhaust Valves in Australia so now I can move forward and complete the restoration of my 906 heads. Thanks to Duncan! https://pbase.com/9146gt/my9146gt_906_engine_twinplug_heads_valves_used_5_australia
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