Originally Posted by
cozmeister
cubic capacity of a standard YB (all flavours) is 1993cc.
The 4x4 pistons are a direct replacement for the 2wd ones, and shouldn't make a difference to the cubic capacity.
Standard compression ratio is 8.0:1.
thnks for the reply cozmeister, i should of made the question clearer
i am looking for the compresion ratio of a 205 block with 4x4 pistons and a 2wd head and a group a gasket , im prty sure the 4x4 pistons have a bigger dish so should lower the compresion ration when used with a 2wd head ,
as for the head question i meant the cc of the combustion chamber in the head ,
thanks gary