Nissan RB30 (SOHC) Spool H Beam Conrods and Ross Racing Forged Pistons (8.5:1)

Spool RB30 (SOHC) Forged Connecting Rods and Ross Racing 8.5:1 Pistons.

Pistons are available in:

• Compression Ratio: 8.5:1
• Bore Sizes: +0.5mm
• Pistons come with rings, gudgeon pins and pin locks
• Forged 2618
• Tool steel 52100 pins – 0.180″

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.