Nissan RB24 Spool H Beam Conrods and CP Forged Pistons
These are custom pistons designed for RB20 engines using the RB26 crank (73.7mm stroke) and RB26 rods (121.5mm c/c)
After putting through order please email us with bore size and compression ratio wanted AND which crank you are using. Turn around time for pistons is generally 6-8 weeks.
For shipping cost -add all the products you would like, then navigate to the shopping cart to calculate shipping quote.
Spool RB24 Forged Connecting Rods and CP Pistons.
These are custom pistons designed for RB20 engines using the RB26 crank (73.7mm stroke) and RB26 rods (121.5mm c/c).
Due to the width of Spool RB26 H Beams the minimum bore size is 82mm
These custom pistons are available in any bore size (min 82mm ) and any compression ratio. Turn around time for pistons is generally 4-6 weeks if not in stock.
Pistons come with rings, gudgeon pins and pin locks.
Spool Connecting Rods Feature:
- ARP 2000 fasteners (L19 fasteners are available as an upgrade)
- High tensile 4340 forged steel
- 2 Piece forging
- Hardness of HRC36-42
- Dowelled caps for precision alignment
- X-RAY & Sonic tested
- Quenching and heat treated
- Shot peened
- 100% Magnafluxed
- Weight Matched Sets +/- 1 gram
- Vacuum degassed to remove impurities
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 aluminium 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
Note: We recommend Joe Gibbs Break in Oil for all new engines.
| Product Name | Nissan RB24 Spool H Beam Conrods and CP Forged Pistons |
|---|---|
| Brands | Spool |
| Engine | RB20 |
| 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 minimum bore size and compression ratio options for the RB24 conrods and CP pistons?
The minimum bore size for the RB24 conrods and CP pistons is 82mm. The pistons can be custom ordered for any compression ratio to suit your specific engine setup.
What type of fasteners are used in the Spool RB24 conrods?
The Spool RB24 conrods come standard with ARP2000 fasteners. You have the option to upgrade to L19 fasteners for increased strength and reliability.
What machining considerations should I keep in mind when using the RB24 conrods and CP pistons?
When using the RB24 conrods and CP pistons, ensure that the big-end and small-end of the conrods are honed to the correct size. Additionally, the pistons require proper bore clearance and ring gaps set by the engine builder for optimal performance.
How are the CP pistons designed to accommodate high-performance applications?
The CP pistons feature deep valve reliefs for high lift camshafts and larger valve reliefs for +1mm valve sizes. They are fully CNC machined and balanced to +/- 1 gram, ensuring precision for high-performance applications.
What is the recommended oil for breaking in a new engine with the RB24 conrods and CP pistons?
We recommend using Joe Gibbs Break in Oil for all new engines to ensure proper lubrication and protection during the initial break-in period.
