Manley Valve Spring, 1.311 SINGLE HEMI Drag Pak 221431X-1

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Specifications:

BrandManley
Part Number221431X-1
GTIN00807298071794
Average Gram Weight72 g
Engine5.7l Hemi
Engine TypeIce
Installed Pressure And Height145 @ 1.811
MakeChrysler
Open Pressure And Height370 @ 1.161
Product TypeEngine Valve Spring
Valve Lift - Maximum0.650 in
Valve Spring Coil Bind Height1.100 in
Valve Spring Inner Diameter - Bottom0.885
Valve Spring Inner Diameter - Top0.650
Valve Spring Outer Diameter - Bottom1.311 in
Valve Spring Outer Diameter - Top1.076 in
Valve Spring Quantity1
Valve Spring Rate353 ppi
Valve Spring SeriesNextek? Series
Valve Spring TypeSingle Conical Ovate Wire

Specifications:

Description:

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.

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