Author Topic: 74 250 Maico barrel on a 77  (Read 2006 times)

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Offline Jumbo J

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74 250 Maico barrel on a 77
« on: June 08, 2016, 07:11:43 pm »
does anyone here know if a 74 AW250 barrel will bolt straight onto a 77 AW400 crankcase and convert it to a 250 without modification?

Offline sleepy

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Re: 74 250 Maico barrel on a 77
« Reply #1 on: June 09, 2016, 09:23:53 am »
does anyone here know if a 74 AW250 barrel will bolt straight onto a 77 AW400 crankcase and convert it to a 250 without modification?

The 400 has a different stroke so a 250 crank would be needed. From memory the stud pattern should be the same for those years.