the crank you are talking about i pulled one out of an a14 just the otherday and have seen pictures of them in other a14s but never an a12

thanks Fandatstick its looks like it could be it im going to go out and do a comparison. i did say this engine was supose to be a gx1200 but im starting to wonder, the hitachis are square top as well and after reading wiki thats not gx1200? i wonder if the head with heart shape chambers and same double valve springs as gx1200 is actually off something else? with this crank as well that makes this engine what?-ta

To clarify my GX120Y engines are the twin carb/large oval port/double valve spring heads (although I no longer have the carbs/manifolds).

I'm wondering if maybe yours is the earlier 1200 GX and that maybe they had this crank?

i should clarify as well this engine is a later
engine (middle dizzy) so if it is a gx then
it is a b210 gx, it is definatlley not a an a14.
so it has-gx style closed chamber head
-with the double springs
-flat top hitachis
-twin outlet exhaust manifold
-this lighten crank i speak of
it was given to me ages ago so i have no idea of its origin. anyone else got a clue??

hmmm what does it say on the block a12 a14 or what??? is possible to have an a12gx head and gear on an a14 block or have an a12 stroker motor anythins possible

engine number is A12-716124-D
casting of the block is M79
does this help??

nope can you find out the total stroke if its not the same as a12 thenits a stroker if its the same then you have a crank that i do not kno what is out off

it has standard stroke because we built
it with standard pistons, rods etc. also
the race head has had 255 thou off
with only small reliefs in the pistons
and the cam has 515 thou lift and
nothing crashed.

standard crank then i spose just a different casting

i'm fairly sure it's the same as the one
in the early link "crank link" bbecause it
is 1.5kg lighter than standard weight.
or maybe iv'e just been thrown off by
the head and carbies?