Spool RB25 - RB29 Stroker Kit with Custom CP Pistons

Nissan RB25/26 Stroker Kit:

• Spool Billet 4340 full counter weight 79mm 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)
• 9310 0.200" Gudgeon Pins standard (0.250" Pins available as an upgrade)

We can supply custom CP Pistons in any bore size or comp ratio - email for details.

Full billet 4340 Nitrided and Balanced Crankshaft

Note: The standard RB26 capacity is 2568cc

Using the 79mm stroker crank, std length conrods and custom pistons, the displacement is increased as follows:

• 86.5mm bore and the 79mm stroker crank = 2750cc / 217cc increase
• 87mm bore and the 79mm stroker crank = 2818cc / 250cc increase

With the increased cubic capacity from the 79mm stroker crank, big increases in torque and low to mid range power are achievable. Boost will come on earlier in the rev range and peak power will increase.

CP pistons come with rings, pins and locks. The gudgeon pins are upgraded to 9310 hardened alloy steel with 4.5mm wall thickness.

Note: Clearancing of the cylinder block is sometimes required.

* Please leave comment in check out with what pistons are required

Piston options 

- 86.5mm/9.0:1 These are custom pistons and take approx 15 weeks once ordered Special order only)

-87mm/9.0:1 These are custom pistons and take approx 15 weeks once ordered Special order only)