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#1
11-13-2009, 08:55 PM
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Re: 842 BBC cylinder head ID.
The originals have plugs on the ends and the later replacements do not.
Jason 
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#2
11-15-2009, 01:05 AM
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Re: 842 BBC cylinder head ID.
Early '842 heads had plugs on each end. About mid-production 1969 went to one plug in one end only.
All '842 heads were closed chamber although I've seen several sets with opened-up combustion chambers. I've always been told these was done later on by owners to improve performance. Nuch
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