The A10 Engine was designed for the original Datsun Sunny -- the B10 Datsun 1000. 998 cc with small carburetor and 3 main bearings. The A10 Engine was released in September 1966 in the 1967 model year Datsun 1000. The A10 featured a three main bearing crankshaft. Bore was 73mm and stroke was 59mm (same as the older Nissan C engine). With a 2-barrel Hitachi carburetor and an 8.5 to 1 compression ratio this engine produced 62bhp (46kW) @6000rpm and 61.5 lb.ft of torque (83 Nm). The Datsun 1000 Coupe introduced in Sept 1968 was equipped with an uprated A10 engine boasting a free flow dual-outlet exhaust manifold with increased compression ratio, now 9.0:1. With a revised carburetor, this Coupe engine produced 66hp (49kW). Later versions of A10 produced 59 hp (SAE).
- A10s have "Datsun 1000" valve cover
Applications:
- Most notable feature is lack of a breather pipe hole at the back of the block. The A10 used an old fashion road-breather instead.
- The most distinctive feature may be the rocker cover -- it actually has the engine size on it unlike any other A-series cover. The engine in this photo is serial number B10-1054xx.
- In the front, A10 looks identical to an A12.