Spool Holden / Nissan RB30 X300 Extreme 300M Conrods with ARP 7/16 Bolts

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Spool X300 Extreme 300M I-Beam Conrods for Nissan RB30
The Spool X300 Extreme series is the next step in high-performance connecting rod technology, building on the proven Spool Drag Pro legacy to deliver even greater strength, durability and reliability for serious RB engine builds.
Manufactured from premium 300M alloy steel and fitted with genuine 7/16" ARP 2000 fasteners as standard, the X300 has been engineered for extreme horsepower applications producing 2,000hp and beyond.
Designed as a direct-fit high-strength conrod for Nissan RB30 engines, the X300 is suitable for RB30 NA, RB30 Turbo, and RB30 engines fitted with RB25 or RB26 cylinder heads.
Specifications
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Application: Nissan RB30 engines
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Suitable for RB30 NA, RB30 Turbo, RB30/25 and RB30/26 combinations
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I-Beam design
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Premium 300M alloy steel construction
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7/16" ARP 2000 fasteners included as standard
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ARP L19 fastener upgrade available
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Weight: 661g with bolts
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Side oil squirters
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Direct-fit design with no machining required
Key Improvements
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Increased beam strength
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Increased strength around the fastener area
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Increased strength around the gudgeon pin area
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Larger 7/16" rod bolts for improved clamping force and reliability
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Designed for extreme cylinder pressure, high boost and high RPM applications
Features
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High-tensile 300M forged steel construction
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Two-piece precision forging design
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Dowelled caps for accurate cap alignment and improved bearing housing integrity
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X-ray and sonic tested for material consistency
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Vacuum degassed material to remove impurities
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Quenched and heat treated for maximum strength and durability
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Shot peened for improved fatigue resistance
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100% Magnaflux inspected
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Weight matched sets to within ±1 gram
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Side oil squirters for improved lubrication
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Suitable for extreme RB30 performance and race applications
Built for the most aggressive RB30 combinations, the Spool X300 Extreme 300M Conrod delivers the strength required for high-boost drag, street and circuit engines where reliability is critical.
Note: Bearings are not included.
| Product Name | Spool Holden / Nissan RB30 X300 Extreme 300M Conrods with ARP 7/16 Bolts |
|---|---|
| Brands | Spool |
| Engine | RB30, RB30DET (DOHC), RB30ET (SOHC) |
| Make | Holden, 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:
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