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Set of Flat top 4 ring pistons. These pistons are used in the Mini City models from 1984 thru 1992 but can also be used to upgrade any 998cc engine. These flat top pistons will result in about a 10:1 compression ratio.
998cc Flat Top Pistons

998cc Flat Top Pistons

998cc Flat Top Pistons
Part No: 20754-30
This item is not available.
Fits the following:
Classic Mini
Sprite & MG Midget
Morris Minor
Set of Flat top 4 ring pistons. These pistons are used in the Mini City models from 1984 thru 1992 but can also be used to upgrade any 998cc engine. These flat top pistons will result in about a 10:1 compression ratio.
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Related Technical Articles:
Classic Mini Cooper Pistons for High Performance or Stock page34
Created: January 03, 2019
We offer many pistons options for the Classic Mini as built from 1959 t 2000. Standard bore. Various designs and size pistons options for 998cc, 1275cc & 1380cc engines. High or low compression options includes rings and pins.
CHECKING PISTON COMPRESSION RING GAPS
Created: September 21, 2010
The following chart shows the SAE recommended Automotive compression ring end gaps. These recommendations are followed for the majority of the ring line unless a certain application requires deviation from the chart.