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Special Cylinder Head
#5
Or a Speedex perhaps?

Better than the Supaloy in my humble opinion - at least I though so when I was considerably younger.

My Nippy went like the clappers with a Speedex head, but I felt the compression ratio was a bit high for it to last. As has been commented before, no idea how much it may have been skimmed.


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Messages In This Thread
Special Cylinder Head - by Tony Press - 16-03-2020, 05:38 AM
RE: Special Cylinder Head - by Ruairidh Dunford - 16-03-2020, 07:39 AM
RE: Special Cylinder Head - by Derek Sheldon - 16-03-2020, 08:45 AM
RE: Special Cylinder Head - by Ruairidh Dunford - 16-03-2020, 09:07 AM
RE: Special Cylinder Head - by Chris KC - 16-03-2020, 09:16 AM
RE: Special Cylinder Head - by Rogerfrench - 16-03-2020, 12:30 PM
RE: Special Cylinder Head - by Tony Press - 16-03-2020, 10:35 PM
RE: Special Cylinder Head - by Ruairidh Dunford - 16-03-2020, 10:53 PM

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