Nissan SR20DE and SR20DET Spool Drag Pro I Beam Conrods and CP Forged Pistons
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Spool SR20DE/SR20DET Drag Pro I Beam Forged Connecting Rods and CP Pistons.
Pistons are available in:
- Bore Sizes: STD, +0.5mm, +1mm, +2mm and +4mm
- Compression Ratio: 8.5:1, 9.0:1 and 11.0:1
These custom pistons are available in any bore size 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 Drag Pro I Beam Connecting Rods are the ultimate high strength direct fit conrod for all Nissan SR20 engines.
- Upgraded ARP2000 7/16 bolts
- Increased strength to the beam
- Increased strength around the fasteners / bolts
- Increased strength around the gudgeon pin
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 SR20DE and SR20DET Spool Drag Pro I Beam Conrods and CP Forged Pistons |
|---|---|
| Brands | Spool |
| Engine | SR20 |
| 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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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 bore sizes and compression ratios are available for the CP pistons in this kit?
The CP pistons in the Spool SR20DE/SR20DET Drag Pro I Beam Conrod and CP Piston kit are available in bore sizes of STD, +0.5mm, +1mm, +2mm, and +4mm. You can also choose from compression ratios of 8.5:1, 9.0:1, and 11.0:1.
What are the torque specifications for the ARP2000 bolts included with the conrods?
For the upgraded ARP2000 7/16 bolts included with the Spool Drag Pro I Beam Conrods, the recommended torque value is around 75 ft-lb when using ARP Ultra-Torque lubricant. Always refer to ARP's latest instructions for the most accurate specifications.
Do the conrods require any specific machining before installation?
Yes, the Spool Drag Pro I Beam Conrods may require big-end or small-end honing due to variations in factory journal and pin sizes. It's crucial to check clearances and ensure proper fitment during installation.
What materials are used in the construction of the conrods and pistons?
The Spool Drag Pro I Beam Conrods are made from high tensile 4340 forged steel, while the CP pistons are constructed from high strength aluminium forgings. Both components are designed for durability and performance in high-stress applications.
What is the recommended break-in oil for new engines using this kit?
For new engines built with the Spool SR20DE/SR20DET Drag Pro I Beam Conrods and CP Pistons, it is recommended to use Joe Gibbs Break in Oil to ensure proper lubrication and protection during the initial running period.
