Hello guys , I have my recently rebuild B16A2 it was working fine but we might have to drop the engine and rebuild it sadly.
My question is I have already aftermarket pistons - stock rods , CR: 11:1 maybe a bit more , 11.1/11.2:1/11.3 , my question is if we go for the rebuild and its needed it.
Could I fit physically a b20b/z crank into a b16a2 block (can source custom length rods (its not a problem that)).
But other than the rods problem , will there be any other unforseen issues? anyone has done that before?
Already have a b20V so don't want to make the same. and would it have any issues to rev up until 9k?
I would guess not but still.

 

The B20B/Z crank will fit in the block... chances are good that some clearancing of the oil squirters may be required... and maybe even removed. Custom connecting rods are expensive and will not be the better choice for your engine combination... custom pistons and the stock B16A length connecting rods will be better. Revving long stroke engines with lower rod ratios up to stratospheric RPM's (like 9000 RPM) isn't good for longevity... and unless you have really high compression, huge camshafts and cylinder head work... it won't make power up that high anyway.

I would find another B16A crankshaft if one is needed... not swap in the B20B/Z crankshaft just because you happen to have it laying around.