Get race-proven motorsport quality with ANDIAL valve springs.  Now, using the very same ANDIAL engine 
quality material.
Race-proven motorsport quality
Maximum lift for maximum performance and durability
Increased seat pressure for optimum performance
Higher natural frequency for high-rpm capability
Dual chamfering for less wear on seats and retainers
In-house SpinTron and Bosch dynamic testing
Available in standard and high lift applications
Easy installation with stock or Ti retainers--no machining required
 
Specs
Type
O.D.
I.D.
Seat Pressure
Open 
Pressure
Max. 
Lift
Coil 
Bind
PV Spring 
Set
Dual 
Spring
31.0
mm
17.60mm
55lbs. @36.50mm
183lbs. 
@25.50
mm
11.00
mm
20.50
mm
High Lift 
PV 
Spring 
Set
High Lift 
Dual 
Spring
31.75
mm
17.30
mm
90lbs. @36.00
mm
277lbs. 
@23.30
mm
12.70mm
20.70mm