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6 cyl Bristol cars Type 400 to 406 - restoration, repair, maintenance etc |
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![]() Good advice thank you, Stefan.
I may even have too much material on the 85A for modern fuel as the engine has had very little use. I plan to get the chosen head fully tested. I assume I will need new exhaust valves for unleaded fuel. What is the thinking on the valve seats? Were the originals good enough even if re-surfaced? |