Description MANLEY 221431-1 Valve Spring 1.311 Single HEMI Manley Performance valve springs are engineered for maximum durability, stability, and precision in high-performance and racing applications.
MANLEY 221431-1 Valve Spring 1.311 Single HEMI
SKU: 221431-1 | Brand: Manley
Approximate Rs 3,539.59 not incl. of customs and shipping.
Call or message us for the price and availability.
Description MANLEY 221431-1 Valve Spring 1.311 Single HEMI
Manley Performance valve springs are engineered for maximum durability, stability, and precision in high-performance and racing applications.
Crafted from premium chrome-silicon alloys, these springs provide exceptional fatigue resistance and high-tensile strength, ensuring consistent valve control at extreme RPMs.
- Dual and triple valve spring designs
- Designed to handle aggressive cam profiles
- Helps prevent valve float
- Suitable for naturally aspirated and forced induction applications
Specifications:
- Product Market: Domestic
- Average Gram Weight: 72 GR
- Emissions Code: 3
- Product Type: Engine Valve Spring
- Valve Spring Quantity: 1
- Valve Spring Series: NexTek Series
- Valve Spring Type: Single Conical Ovate Wire
- Valve Spring Rate: 353 PPI
- Valve Lift – Maximum: 0.650 IN
- Installed Pressure and Height: 145 @ 1.811 PPI
- Open Pressure and Height: 370 @ 1.161 PPI
Part numbers: 221431-1, 221431-16
Special order: imported to order. Contact us for price and availability.



