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Spool RB20 Forged Connecting Rods and Ross Racing Forged Pistons
These Pistons are custom made for Spool and rated at 900-1000hp by Ross Racing Pistons.With upgrade pins Ross rate these pistons up to 250 bhp per cylinder.
Pistons are available in:
- Compression Ratio: 9.0:1
- Bore Sizes: +0.5mm and +1.0mm
- Forged 2618
- 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
Ross Racing Pistons:
All of Ross Racing Pistons (since 1985) have been forged from 2618 billet bar stock and have been heat treated and aged to a T61 condition (2618-T61). 2618-T61 is the material that is used when fatigue resistance and durability are of prime importance by all premium racing piston manufacturers.
Note: We recommend Joe Gibbs Break in Oil for all new engines.
| Product Name | Nissan RB20 Spool H Beam Conrods and Ross Racing 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.
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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 recommended bore clearances for the Ross Racing pistons in the RB20?
For the Ross Racing pistons, a typical bore clearance of 0.0015" to 0.0025" is recommended. However, it's essential to consult with your engine builder for specific clearances based on your application and intended power levels.
What compression ratio do the Ross Racing pistons provide for the RB20?
The Ross Racing pistons included in this kit provide a compression ratio of 9.0:1. This ratio is suitable for a balance of performance and reliability, especially when tuned for forced induction.
What is the maximum power rating for the Ross Racing pistons in this kit?
The Ross Racing pistons are rated for 900-1000hp, with upgraded pins allowing for up to 250 bhp per cylinder. Keep in mind that actual power handling will depend on factors like tuning, fuel quality, and engine assembly.
Do the Spool conrods require any specific machining before installation?
Yes, the Spool conrods may require big-end or small-end honing to ensure proper fitment due to factory journal and pin size variations. Always check clearances before installation.
What fasteners are used with the Spool conrods in this kit?
The Spool conrods come standard with ARP2000 fasteners. An upgrade to L19 fasteners is available for those seeking additional strength for high-performance applications.
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