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R90/6 cylinder heads interchangeability

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George Little
(@grayluders)
Posts: 4
New Member
Topic starter
 

A pair of '76 R90/6 that had left years ago with a bike I sold wandered back home.
Can anyone advise on interchangeability with a R75/6?
Thanks,
George Little

 
Posted : 10/28/2018 12:09
James Strickland
(@8053)
Posts: 423
Reputable Member
 

Most likely they will fit just fine. You might try looking on an on-line fiche like Max BMW's web site and see if the part number for the head casting is the same.

former Airmarshal, IL.

 
Posted : 11/04/2018 09:35
George Little
(@grayluders)
Posts: 4
New Member
Topic starter
 

Thanks, JS. Not the same casting number, but they use the same head gasket. Found a thread addressing their interchangeability - same camshaft, basically same jetting, just slightly larger intake valve. Apparently an efficient swap.
GL

 
Posted : 11/04/2018 12:15

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