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BMW Mini Cooper
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1275 +020 9.75 Piston Set With Rings & Pins -do Not Use Superceed

1275 +020 9.75 Piston Set With Rings & Pins -do Not Use Superceed

1275 +020 9.75 Piston Set With Rings & Pins -do Not Use Superceed
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Alternate Products
Classic Mini High Compression 1275 piston +.020 | Sold Each
$118.95 Classic Mini High Compression 1275 piston +.020 | Sold Each
Best performance stock pistons have a possible compression ratio of 10.0:1. Current pistons differ from the 60s originals, improved with a "low drag" slipper skirt design and a shorter lighter wrist pin. Wrist pin height is 1.5276", top dish is 8.4cc. Performance is enhanced by the use of 3mm oil rings and the smaller drain slot behind this ring decreases the risk of breakage.
Recommended items for: 21253-20
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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.
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