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If you are looking for great longevity from your 998cc engine, these 4-ring dished pistons could be the best answer at rebuild time. Compression 9:1. AE brand, circlip type.
998 +30 Dished Piston With Rings & Pins - Single

998 +30 Dished Piston With Rings & Pins - Single

998 +30 Dished Piston With Rings & Pins - Single
Selected: +.030" oversize piston set
Part No: 20773-30-EA
This item is not available.
Fits the following:
Classic Mini
Sprite & MG Midget
Morris Minor
Also used in big bore 948cc engines
If you are looking for great longevity from your 998cc engine, these 4-ring dished pistons could be the best answer at rebuild time. Compression 9:1. Nural brand, circlip type.
If you are looking for great longevity from your 998cc engine, these 4-ring dished pistons could be the best answer at rebuild time. Compression 9:1. Nural brand, circlip type.
If you want to go faster, keeping that 948cc block, Big bore is the best answer; boring to over 1000cc will yield a very noticable improvement! The stock bore size on a 948 is 2.4775, our big bore piston set allows a 2.582" bore.

For the small bore (998cc) owner: If you are trying for max horsepower with great longevity, these 4-ring dished pistons could be the best answer. Compression range of 9:1 with a total displacement of 998cc will make you and your motor feel great!

If you are looking for great longevity from your 998cc engine, these 4-ring dished pistons could be the best answer at rebuild time. Compression 9:1. Nural brand, circlip type.
If you are looking for great longevity from your 998cc engine, these 4-ring dished pistons could be the best answer at rebuild time. Compression 9:1. AE brand, circlip type.
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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.