difference betwenn a14 and a15 blocks like is the deck height bigger ect and iv already done a search

Specifications
Datsun A14 Engine

Bore: 76mm
Stroke: 77mm
Conrod: 133mm
Block Hieght: 204.1mm
Displacement: 1397cc
Power: approx 78hp

Datsun A15 Engine

Bore: 76mm
Stroke: 82mm
Conrod: 133mm
Block Height: 204.1
Displacement: 1488cc
Power: approx 81hp



Yeah the deck is higher, I'd emagine buy the same diferance of the strock's? but the conrod's may be different??

Quote:Why do you say the deck is higher? I reckon they are the same.

In any case, the two blocks are significantly different. The A15 block has cast-in 'A15' on the side, and has cutouts in the lower part of the block for the larger crank counterweights. There may be other differences. Somewhere around here we have a comparo photo.

I dident even notice that, but that comparo pic is what I was thinking of when I sed that, I was sure it was a little taller?

same height

that mean's it's rods must be shorter? that would be #### for the serch or RPM's!

Quote:
so if you put an a15 crank in a14 block u basicly have an a15 right

Nope. A15 crank won't fit into an A14 block.

The rods may be the same length. If so, the piston pin height will be different. It could be done either way.

how come the a15 crank wont fit

the counter weights hit the block. I has bin done but with modification..