Spool RB25NEO - RB29NEO Stroker Kit with Custom CP Pistons
We carry a limited range of pistons for this kit in stock. If we don't have your exact requirements it will take 6-8 weeks to have pistons made.
For shipping cost -add all the products you would like, then navigate to the shopping cart to calculate shipping quote.
Nissan RB25NEO RB29 (79mm) Stroker Kit:
- Spool Billet 4340 full counter weight 79mm Stroker Crankshaft
- Spool H 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
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.
| Product Name | Spool RB25NEO - RB29NEO Stroker Kit with Custom CP Pistons |
|---|---|
| Brands | Spool |
| Engine | RB25 NEO |
| Make | Nissan |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
You can calculate shipping rates inside the shopping cart. After adding all the products you would like, navigate to the cart and click the ESTIMATE SHIPPING & TAX link. .
If you only see the Click and Collect shipping option, it means that your address was not validated correctly.
If you have issues calculating freight, please get in touch. We are happy to help.
Disclaimer:
Product images are for description purposes only. Actual product may vary.
Shipping calculations available at checkout.
If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
What is included in a typical Spool engine kit?
Kits usually include pistons, rings, rods, bearings and related hardware depending on the engine family. Check the listing for exact inclusions.
Do I still need machining with a full engine kit?
Yes. The block must be honed and all clearances checked and set by your builder. Assembly should only occur after full measurement and verification.
What are the benefits of using the Spool RB25NEO - RB29NEO Stroker Kit?
The Spool RB25NEO - RB29NEO Stroker Kit increases cubic capacity to enhance torque and low to mid-range power. The 79mm stroker crankshaft allows for earlier boost onset and improved peak power, making it ideal for performance applications.
What machining is required for the Spool RB25NEO - RB29NEO Stroker Kit?
Clearancing of the cylinder block may be necessary to accommodate the increased stroke from the 79mm crankshaft. Additionally, ensure that the big-end and small-end of the conrods are properly honed for optimal fitment.
What specifications should I consider when ordering custom CP pistons for this kit?
When ordering custom CP pistons, consider the desired bore size and compression ratio. It's crucial to communicate your specific requirements to ensure the pistons are tailored to your engine's setup.
What type of gudgeon pins are included with the Spool RB25NEO - RB29NEO Stroker Kit?
The kit includes 9310 hardened alloy steel gudgeon pins with a 0.200" diameter and a 4.5mm wall thickness. An upgrade to 0.250" pins is also available if needed.
What ARP bolt options are available with the Spool RB25NEO - RB29NEO Stroker Kit?
The kit comes standard with ARP2000 bolts for the connecting rods. As an upgrade, you can opt for ARP L19 bolts, which provide enhanced strength for high-performance applications.
