Gasket set, Cylinder head 1,2 mm B20A, B20B

Service instructions:
For the B20, there are three different thickness head gaskets, 0.8 - 1.2 - 2 mm. This makes it possible to vary the compression of the engine. 0.8 and 1.2 mm . Thick gaskets are usually used for dual carburetor and fuel injection engines. For single carbureted engines 1.2 and 2 mm seals come into question.
Higher compression ratio (= thinner gasket) usually results in higher performance.
Lower density (= thicker seal) is a quieter running engine, provided the engine is mechanically sound.

Note: The thicker the gasket, the more important the immediate tightening of the cylinder head bolts!

142, 144, 145. All models with engines B20A and B20B
242, 244, 245. All models from 1975 to 1976 B20A engines

OEM # 275559