998+040 COUNTY PISTON & GRANT CAST RING SET [998-040]

Minisport Verified independent store

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Quality 998cc +040" 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. We use these County pistons and Grant rings in our workshop, making this a proven combination for rebuilding 998cc A-Series engines. Kit Includes: 4x County pistons – CP302K +040 4x Grant ring sets – G5045 +040 4x gudgeon pins 8x gudgeon pin circlips Dished-top piston design Suitable for 998cc +040" A-Series engines The pistons are manufactured by County Pistons and are supplied with quality Grant cast piston rings. Specifications: Bore: 998cc +040" Piston type: Dished top Compression ratio: Approx. 8.8:1 with standard specification components Gudgeon pin: Circlip type Piston brand: County Ring brand: Grant County piston part number: CP302K 040 Grant ring part number: G5045 040 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 mixing components or building a modified A-Series engine. A quality County piston and Grant ring combination that we are happy to use in our own workshop — ideal for a 998cc A-Series rebuild. Show more