1275 STD COUNTY PISTON SET (9.75:1) & GRANT RING SET- SET OF 4 [CP726K-STD]

Minisport Verified independent store

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Quality 1275cc standard-size piston and ring set for the Cooper S 1275cc A-Series engine, designed to provide approximately 9.75:1 compression ratio. This set includes County pisto ns with Grant piston rings and is an excellent choice for a standard-bore 1275cc A-Series engine rebuild. The pistons use press-fit gudgeon pins. Kit Includes: 4x County standard-size pistons 4x Grant standard-size piston ring sets 4x press-fit gudgeon pins Suitable for standard-bore 1275cc A-Series engines Specifications: Engine: 1275cc Cooper S A-Series Bore: Standard size Compression ratio: 9.75:1 Piston type: County County piston identification: CP726 STD Ring brand: Grant Grant ring identification: G1818 STD Gudgeon pins: Press fit Compression height: 1.527" Important Fitment Information These pistons are designed for the Cooper S-type 1275cc engine configuration and use press-fit gudgeon pins. Before ordering, always confirm the existing bore size, piston specification, compression height and gudgeon pin arrangement, particularly when rebuilding an A-Series engine using components from different 1275cc engine types. If your block has already been bored oversize, please select the appropriate piston size to match the finished cylinder bore. A quality County piston and Grant ring combination for a standard-bore 1275cc Cooper S-style A-Series engine rebuild, supplied as a complete set of four. Show more