The head i have will be the one you want.
But You cant have it
I have a A14 low comp head wich would be great for a force fed engine. But i had the chambers welded up to obtain the comp ratio i wanted.
I am going to look at some a series parts that are from a datsun van & i will let you no if i get an open chamber head if you still need 1

Is it running an intercooler or water injection?

Edit: been made aware open head h75 does not lower comp just burn more oxides for pollution requirements in some countries.

no.

Quote:

Last time I checked inlet valves on the
A engines were bigger then the intakes. This looks like aburn between two intake valves to me, which would in a way support your theory maybe. One could assume that there would be more mix around the intake valves...???

This is the head off my blown datto.
Where the head gasket blew, the flame travel between cylinders has acted like an acetelene torch and burned away part of the head.
The decomp shim was also nothched a wee bit too.
I Was gonna get it welded up, but it was cracked too.
Now I'm after an open chanbered head for my new motor.

who was the rough bugger with the lead foot you gotta learn when to slow down

Bart slow down????? never...............

I think you will find that the open cambered head is 26cc or very close to the kidney shape chambered head cc's, the major difference being the shape only....

Benny

Ive been told that there is a low comp head, possibly off a C20 van.