Interchangeability

[manxman]

Will  A10 pre unit cylinders fit without modification on semi unit plunger cases? Will semi unit plunger heads fit on A10 pre unit cylinders with out modification?  Thanks  Bill

[Drew Back]

Yes they are all compatible with the exception of the aluminum head I think the carb angle is wrong. Where are you located?

[manxman]

I live in Watertown, NY USA. I was refering to the iron head A10 preunit  parts. Thanks for the reply.

[KiwiGF]

Will  A10 pre unit cylinders fit without modification on semi unit plunger cases? Will semi unit plunger heads fit on A10 pre unit cylinders with out modification?  Thanks  Bill

You probably know but in case not, there are big (later) and small fin (earlier) variants of heads and barrels, also thin and thick flange (on large fin barrels) these are all interchangeable as previously stated, but you may want the correct version for your bike.

You may need longer crankcase studs for thick flange barrels.

[trevinoz]

Ariel Huntmaster bits will also fit.