All A-series engines use the same Transmission Bellhousing Pattern. This means any rwd transmission, from B10 to B310, fits any A-series engine.
No other Nissan engine shares this pattern. This means transmissions from Datsun 1600 or any other will not fit an A-series engine.
B110 used a dust cover
B210 used a rear engine plate
Image to scale: 88dpi Top to bottom: 338 mm center hole: 94 mm Blue holes: 8 mm Red holes: 8 mm Green holes: 9 mm Gray holes: 10 mm
L/Z
CA/SR
NOTE: CA16 differs from CA18/CA20