 THE FINEST STEEL
RACING SPRINGS ON THE
MARKET!
Manley proudly offers an
outstanding array of valve
springs for
drag racers, oval / endurance
competitors and niche markets
like the Chevy LS, Ford
Modular and Chrysler / Dodge
Hemi.
Features include:
Smaller diameter for minimal
weight
Increased valvetrain
stability
Optimized wire for
increased
natural frequency
Reduced end size for low
moving mass
Variable pitch for reduced
coil surging and higher
RPM
Advanced alloy material
specifically designed for
racing
Eight important reasons
to
use
Manley valve springs:
1. Manufactured from
“super clean” Hi-Tensile
Chrome Silicon steel.
2. Shot-peened to MIL Specs
for maximum fatigue
life.
3. Proprietary multi-step
heat treating minimizes
load loss
4. Tightly controlled open
end flatness reduces
valve stem side
loading 5.
Optimized “Select Size Fitting”
between outer and inner
springs to maximize harmonic
dampening and reduce heat
generated during
operation 6. Computer-
aided modeling of
designs minimizes valve
bounce
and valve gear
separation 7. Tip
thickness designed to
eliminate overload
breakage 8. Many
offerings are a damperless
design which eliminates
unnecessary damper weight
and reduces retainer
wear |
