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Manley Performance MAN Valve Springs Valve Springs, Retainers - 221455-16

Manley Valve Spring, SPRING-1.500 DOUBLE
Availability: In stock
Part number: 221455-16
Manufacturer: Manley Performance
$1,104.38
In stock — usually ships within 1 business day

From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high-RPM performance. Built to outperform and outlast in real-world competition.

Extensively tested on the Spintron, dyno and race track (including blown nitro engines) and proven highly effective

Higher natural frequency and lower active mass provides improved valvetrain control and higher RPM potential

Dual spring design reduces friction, which generates less heat and translates into greatly reduced load loss

Smaller diameter, lightweight dual design allows engine to rev higher with improved valve train control

Accepts smaller, lighter retainers which also promotes higher revs

Ultra clean, high tensile strength chrome silicon material

Manley Valve Spring, SPRING-1.500 DOUBLE.

Manley Valve Spring, SPRING-1.500 DOUBLE

Manley Valve Spring, 1.500 DOUBLE

Engine Valve Spring Kit

SPRING-1.500 DOUBLE

Valve Spring

No confirmed vehicle fitment listed We do not have a vehicle-specific fitment row for this product yet.

This does not automatically mean the part fits every 3000GT or Stealth. Send us your year, drivetrain, turbo/non-turbo status, and part number before ordering if fitment is in question.

Ask fitment help