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High Compression Piston (500cc)
These pistons are American made, and give a compression ratio of approximately 9:1 with the head gasket fitted (9.5:1 without gasket). They come complete with rings, gudgeon pin and circlips. Available in: +30, +40, +50, and +60 only.
Suitable for all 500cc Bullets from 1953.
** Spare/replacement rings are listed with the appropriate sized piston **
Note: If you are using the standard bottom end, we suggest you use a compression plate with this piston to lower the compression. We would also suggest a higher grade of fuel is used when raising the compression of your engine.
Sorry There are no parts which fit your model!
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