A10 cylinder and head on A7

[perlut]

Will a A7 1953 work with a A10 cyl and head?
It is the setup on a object a bought.

[rocker21]

yes but not very well, comp ratio will be reduced and the combustion chamber shape will be wrong.

[Swarfcut]

  Both A7 and A10 heads fit either cylinder barrel, the headbolt positions are the same. Cylinder bores are different but if there is nothing else available these parts can be made to work.

 Have you really got the wrong barrel?  A7 has 7 fins, A10 has 8. Could be it is A10 inside, fitted into A7 stamped crankcases.

 Now get over to the introduction section and tell your backstory. Welcome along.

 Swarfy.

[muskrat]

G'day perlut 
As Swarfy said A7 & A10's are very similar and parts can be swapped. After 70 years all sorts of things could/has been done to it. Count the fins on the barrels is the easiest way.
An intro and pictures would be nice.
Cheers

[Peter in Aus]

I fitted a A10 head to A7 engine with .060 oversize bore worked fine for me

[Black Sheep]

Worked fine on my A7. It went rather well!

[perlut]

Tnx for your answers. 

I'll will try to post some pictures tomorrow.