Welcome to B20A.ORG!
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Welcome to B20A.org. Your resource for all things relating to the original Honda B20A engine. We hope you find this website a useful resource, guide, and quick reference. This site is new, and under construction. We are compiling information, and hope to have the site complete soon.
About The B20A :
The Honda B20A engine shares little in common with the rest of the B-series of engines. It was first seen in Japan and similar markets in 1985. This engine came in the 2nd generation (1985-1987) Prelude and 3rd generation (1985-1989) Accords. With dual overhead cams, 2 liters of displacement, Programmed Fuel Injection (PGM-FI), the engine was capable of outputting up to 160hp and 140lb-ft of torque.
This engine is not to be confused with the B20A3/5 found in the 1988 to 1991 BA5 Preludes or the B20B/Z That came in the Orthia or CR-V. It was not available in the North America, and they are extremely hard to come by there. Most engine importers won't even know the difference, and will probably confuse it for the B20A from the 3rd gen Prelude.
A 1.8 liter varient of the B20A was also made, called the B18A, Came in the CA2 honda accord/vigor from japan, It was a 130PS engine that ran on twin sidedraught carbs, The head is totally different to the B20A head cause of the square intake ports for the carb manifold. The block is simply a destroked B20A, The heads swap over so a B18A EFI conversion is possible. Everything else from the B20A bolts right on.[Read More]