Quality 998cc standard-size dished-top piston and ring set for BMC A-Series engines. This is the circlip-type piston and must not be confused with the pressed-type gudgeon pin arrangement used on some other engines. These are County Pistons supplied with quality Grant cast piston rings. This is a combination we use in our own workshop and is an excellent choice for a standard 998cc A-Series engine rebuild. Kit Includes: 4x County standard-size dished pistons 4x Grant standard-size ring sets 4x gudgeon pins 8x gudgeon pin circlips Dished-top piston design Suitable for standard-bore 998cc A-Series engines Specifications: Engine: 998cc A-Series Bore: Standard size Piston type: Dished top Compression ratio: Approx. 8.8:1 with standard specification components Gudgeon pin: Circlip type Piston brand: County Ring brand: Grant Quality cast piston and ring combination Important Fitment Information The 998cc compression height is 1.342". Please do not confuse the 998cc piston with the 1098cc piston, which has a 1.196" compression height, despite using the same nominal bore size. Always confirm the piston specification and compression height before ordering, particularly when rebuilding or modifying an A-Series engine. A quality County piston and Grant ring set for a standard 998cc A-Series rebuild — a proven combination we are happy to use in our own workshop.