These Spool CP Custom Pistons are available in:
- Bore: +0.5mm
- Comp Ratio: 9.0:1
- Stroke: 91mm
- 9310 Series Pins
Note: Also available in any bore size and comp ratio – please email for details.
CP Pistons standard features include:
- Upgraded 9310 gudgeon pins
- Deep valve reliefs accommodate high lift camshafts
- Larger valve reliefs for +1mm valve sizes
- Custom skirt cam and barrel design
- Accumulator grooves
- High strength aluminum forgings
- High performance rings
- Fully CNC machined and balanced to +/- 1 gram
- Wrist pins included
- Double pin oilers force fed from oil ring groove
- Pick lock grooves for easy lock removal
- Pin fitting included
