Spool RB25 or RB26 Drag Pro I Beam Connecting Rods and ROSS Forged Pistons
Spool RB25 or RB26 Drag Pro I Beam Forged Connecting Rods and Ross Racing Forged Pistons
Pistons are available in:
- Compression Ratio: est. 9.0:1 – 9.5:1
- Bore Sizes: +0.5mm and +1mm
- 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 RB25 and RB26 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
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.
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