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Author Topic: installing double crossover headers on a 79?  (Read 2571 times)

Offline Barry

  • Mt. Olympus Resident
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  • Posts: 5156
Re: installing double crossover headers on a 79?
« Reply #15 on: August 24, 2011, 03:29:45 AM »
Quote
double crossovers have a 35mm circumference. the threads on the 79 cyl. head are 32mm.


R45/65's have 35mm dia pipes. Most other airheads are 38mm with some of the 1000's being 40mm.
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Barry Cheshire, England 79 R45

mendozeal

  • Guest
Re: installing double crossover headers on a 79?
« Reply #16 on: August 24, 2011, 04:10:21 PM »
yeah my measurements were done inside dimensions, and with a plastic ruler. :-?.. sorry haha
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