Spool CP Custom RB30DET NEO (RB30/25 NEO Head) Pistons

These Spool CP Custom Pistons are available in:

• Bore: +0.5mm
• Comp Ratio: 9.0:1
• 5310 Series Pins

Note: Also available in any bore size and comp ratio – please email for details.

CP Pistons standard features include:

• 5310 gudgeon pins (9310 thicker wall thickness pins are available as an upgrade)
• 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

Available options

• Piston: +0.5mm / 86.5mm 9:1
• Piston Pin Upgrades: No Pin Upgrade; 9310 0.200" Pins; 9310 0.250" Pins
• Compression Ratio: 9.0:1; 8.5:1

Engine build fitment

RB30DET (DOHC). Match the selected dimensions, engine generation and rotating assembly specification before machining or assembly.

Installation and BBT workshop support

Confirm finished bore size, piston-to-wall clearance, compression height, pin specification, ring gaps and valve clearance against the supplied piston documentation.

Built by Boost & Tune is an authorised Spool Imports dealer and can assist with component selection, engine assembly and tuning requirements for your build.