Free domestic shipping on all Performance Valve Springs and Ross Harmonic Balancers
Performance Valve Springs & Ti-Retainers for Nissan RB25 engines
These install with 85Lbs seat tension, 185Lbs open at 10mm Lift and will go 10.5mm Max valve lift.
Includes: 24x Valve Springs and 24x Titanium Retainers
Intake side uses 12x Raised Height Titanium Retainers
These are a simple drop in set.
Note: Excludes RB25 NEO engines.
