1275 +20 High Compression Piston – Single
1275 +20 High Compression Piston – Single
Low drag 1275 piston standard size 2.780 plus 20 thou oversize(Rings included).
This piston has a possible compression ratio of 10.3:1 as fitted to Cooper RSP 1990.
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 R41570-20.
AE Hepolite is now owned by Federal Mogul and trademarked “Nural”
Sold singly,4 per engine required–was Rover piston TAM2050-00 stamped AE21963 as fitted to 1990 Cooper 1275 engines. Now Nural stamped 87-524107-00
R2,234.44 excl VAT
Out of stock. Can be backordered If an item is out of stock in our shop, no worries! You have the option to place a backorder. Backordering means that we are either waiting for new stock or we’re in the process of placing a new order. Delivery times for backordered items may vary. If the order is urgent, feel free to contact us for an estimated delivery timeframe.
Description
Low drag 1275 piston standard size 2.780 plus 20 thou oversize(Rings included).
This piston has a possible compression ratio of 10.3:1 as fitted to Cooper RSP 1990.
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 R41570-20.
AE Hepolite is now owned by Federal Mogul and trademarked “Nural”
Sold singly,4 per engine required–was Rover piston TAM2050-00 stamped AE21963 as fitted to 1990 Cooper 1275 engines. Now Nural stamped 87-524107-00
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