does anyone out there have a 4ag and a 3sge crank which they could line up and see if the bearing journals are close enough to machine.
I am wondering if you can get a larger stroke crank into the 4ag block.
If you want to put a longer stroke crank in a 4A look at the 7A.
It won't fit but you can look at it
The HKS stroker setup for the 4AGE when it was available only took the engine out to 1700cc. There isn't really enough room in the crackcase of the 4A for a significantly bigger crank. You could however use a 7A bottom end to go to 1800cc.