Compression ratio: 9.0:1
Features
* High strength aluminum forgings
* Super lightweight designs
* Fully CNC machined and balanced to +/- 1 gram
* Wrist pins included at no extra cost
* Accumulator groove included
* Double pin oilers, force fed from oil ring
* Pick lock grooves for easy lock removal
Price is for a full set of 4 pistons and rings - enough for one engine.