Spool CP Custom Toyota 3RZ-FE Pistons

These Spool CP Custom Pistons come in the following specs:

• Bore: +0.5mm
• Comp Ratio: 9.5:1
• Upgraded 9310 / 0.190" Series Pins

Note: They can also be arranged in any bore size and comp ratio as a custom piston – please email for details and pricing.

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

Engine build fitment

3RZ. 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.