2 main things to look for...
1/ block height
look at the height of the block only... if its the same height as the gearbox then its a B16A... but if its higher then it can be a B16B/B18/B20
2/ a rib/tulang rusuk
B20 got 1 rib missing from the block. refer attached picture. this is the easiest and fastest way to tell a B20 from other B16/B18 blocks.
But B16B and B18C uses the same block so hard to tell unless u open it up and identify the internal parts.
-notice the B20B doesnt have the rib...
Thanks Madman its really help..:top:
waiting more..more..more.. inputs from other...and can continued with no 3...i will list down

