Spool RB32 3.2L Stroker Kit with Custom CP Pistons — RB30/25

Spool RB32 91mm 3.2L Stroker Kit

The RB32 Stroker Kit Features:

• Spool Billet 4340 full counter weight 91mm nitrided Stroker Crankshaft
• Spool H Or Drag PRO I Beam Forged Connecting Rods with ARP-2000 Bolts (ARP L19 Bolts available as an upgrade)
• CP Custom Pistons (rings, pins and locks included) 86.5mm 9.0:1 (we can get any comp and bore custom made for you for additional $200 and 6-8 weeks delay)
• 9310 0.200" Gudgeon Pins standard (0.250" Pins available as an upgrade)

Like all Spool cranks, this is a true billet crank machined from forged 4340 bar stock.

All components, crank, connecting rods and pistons are balanced.

NOTE: The std OEM crank girdle can be used with the RB32 crank setup.

Note: Clearancing of the cylinder block is sometimes required.

Selected build specification

• Engine Block / Head: RB30/25

Available options

• Piston Diameter: +0.5mm; +1mm; STD (Special Order)
• Pin Upgrade: No Upgrade; 9310 .250"; 300M .250"
• Conrod Option: Spool H-Beam ARP2000 3/8 Bolt; Spool H-Beam ARP L19 3/8 Bolt; Spool H-Beam ARP CA625 3/8 Bolt; Spool Drag Pro I-Beam ARP2000 7/16 Bolt; Spool Drag Pro I-Beam ARP L19 7/16 Bolt; Spool 300M Extreme I-Beam ARP2000 7/16 Bolt; Spool 300M Extreme I-Beam ARP L19 7/16 Bolt

Engine build fitment

RB30DET (DOHC)|RB30ET (SOHC)|RB32 Stroker. Match the selected dimensions, engine generation and rotating assembly specification before machining or assembly.

Installation and BBT workshop support

Confirm block and head configuration, finished bore size, bearing clearances, compression ratio and crank trigger compatibility. Block clearancing and rotating assembly balancing may be required.

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