
The Story
STD 020 040 (set of 4) use RS4735 piston rings
Includes oil gallery cooling & alfin insert on first compression ring. Round opening OD 51.8mm
Top of dome to crown 4mm
Compression height 49.6mm -16.4mm

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
STD 020 040 (set of 4) use RS4735 piston rings
Includes oil gallery cooling & alfin insert on first compression ring. Round opening OD 51.8mm
Top of dome to crown 4mm
Compression height 49.6mm -16.4mm














