× 1-800-946-2642 Home My Account Social / Forum Articles Contact My Cart
Shop Now
Select Your Car Type Sale Items Clearance Items New Items
Set of 4. +.040.
High performance replacement pistons suitable for up to 7,000 RPM. Pin height is 1.498" which could result in a compression ratio of 9.4:1. Top is dished 8.4cc, and they have a 4mm oil ring and two 1.5mm compression rings.
While the original Cooper S piston is no longer available, Hepolite/AE offers a very good replacement. Modern manufacturing technology and a drive to be the best have resulted in these excellent pistons. Drag has been reduced by using a "slipper skirt" design.
Piston Set 1275gt S With Rings & Pins

Piston Set 1275gt S With Rings & Pins

Piston Set 1275gt S With Rings & Pins
Select variations below for more info:
Set of 4. +.060
High performance replacement pistons suitable for up to 7,000 RPM. Pin height is 1.498" which could result in a compression ratio of 9.4:1. Top is dished 8.4cc, and they have a 4mm oil ring and two 1.5mm compression rings.
Set of 4.
High performance replacement pistons suitable for up to 7,000 RPM. Pin height is 1.498" which could result in a compression ratio of 9.4:1. Top is dished 8.4cc, and they have a 4mm oil ring and two 1.5mm compression rings.
While the original Cooper S piston is no longer available, Hepolite/AE offers a very good replacement. Modern manufacturing technology and a drive to be the best have resulted in these excellent pistons. Drag has been reduced by using a "slipper skirt" design.
Set of 4, +.030
High performance replacement pistons suitable for up to 7,000 RPM. Pin height is 1.498" which could result in a compression ratio of 9.4:1. Top is dished 8.4cc, and they have a 4mm oil ring and two 1.5mm compression rings.
While the original Cooper S piston is no longer available, These pistons offers a very good replacement. Modern manufacturing technology and a drive to be the best have resulted in these excellent pistons. Drag has been reduced by using a "slipper skirt" design.
Set of 4, +.020
High performance replacement pistons suitable for up to 7,000 RPM. Pin height is 1.498" which could result in a compression ratio of 9.4:1. Top is dished 8.4cc, and they have a 4mm oil ring and two 1.5mm compression rings.
While the original Cooper S piston is no longer available, Hepolite/AE offers a very good replacement. Modern manufacturing technology and a drive to be the best have resulted in these excellent pistons. Drag has been reduced by using a "slipper skirt" design.
Set of 4. +.040.
High performance replacement pistons suitable for up to 7,000 RPM. Pin height is 1.498" which could result in a compression ratio of 9.4:1. Top is dished 8.4cc, and they have a 4mm oil ring and two 1.5mm compression rings.
While the original Cooper S piston is no longer available, Hepolite/AE offers a very good replacement. Modern manufacturing technology and a drive to be the best have resulted in these excellent pistons. Drag has been reduced by using a "slipper skirt" design.
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
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.