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P21253-60

1275 +60 HIGH COMPRESSION PISTON - SINGLE

Low drag 1275 piston standard size 2.780 plus 60 thou oversize (Rings included).

This piston has a possible compression ratio of 10.3:1 as fitted to Cooper RSP 1990. The engine then becomes 1328cc

The best performance 1275 pistons are C-STN100 range which have 9.73cr when the piston is 1mm down the block. Current pistons differ from the 60s originals and now have a "low drag" slipper skirt design and a shorter lighter 20.6mm wrist pin. Wrist pin height is 1.5276" to crown with a top dish of 8cc.

Performance is enhanced by the use of 3mm oil rings and the smaller drain slot behind this ring decreases the risk of breakage and 2 of 1.5 mm compression rings. Crown depth to first ring is about 10mm

Rings are R41570-60.

AE Hepolite is now owned by Federal Mogul and trademarked "Nural"

.Now Nural stamped 87-524114-00

Sold singly,4 per engine required--
  • Was £73.50 exc vat
  • Was £88.20 inc vat
  •  
  • Now £62.48 exc vat
  • Now £74.98 inc vat

 In stock

 

Save money with this non-genuine version of this product.

PISTON SINGLE 1275 LOW DRAG +60 8.8CR

P21251-60

  • Was £48.00 exc vat
  • Was £57.60 inc vat
  •  
  • Now £43.20 exc vat
  • Now £51.84 inc vat

 
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help Recommended usage 4 x P21253-60 to fit one mini.
 
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