Manley NexTek Valve Springs 221440P-1 SPRING-1440 POLISHED

SKU: MAN221440P-1

Valve Springs

Manley Performance

Manley NexTek Valve Springs 221440P-1 SPRING-1440 POLISHED

SKU: MAN221440P-1

Valve Springs

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Description

These Manley NexTek valve springs are better-designed valve springs using state-of-the-art machinery for purpose-built racing engines. They're manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature a proprietary, multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. The Manley NexTek valve springs are smaller diameter and lightweight, allowing engines to rev higher faster. They have an extended tip thickness designed to eliminate overload breakage, and their tightly controlled open-end flatness reduces valve stem side loading.

Part Type

Valve Springs

Data: v4.2 - Upd: 2026-10-14 10:11:39

Specifications

Product Attributes - Brand: Manley
Product Attributes - Manufacturer's Part Number: 221440P-1
Product Attributes - Part Type: Valve Springs
Product Attributes - Product Line: Manley NexTek Valve Springs
Product Attributes - UPC: 807298023564
Product Attributes - Valve Spring Style: Standard
Product Attributes - Number of Springs Per Valve: Dual
Product Attributes - Maximum Valve Lift (in.): 0.700 in.
Product Attributes - Retainers Included: No
Product Attributes - Outside Diameter of Outer Spring (in.): 1.570 in.
Product Attributes - Coil Bind Height (in.): 1.190 in.
Product Attributes - Damper Spring Included: Yes
Product Attributes - Spring Rate (lbs./in.): 534 lbs./in.
Product Attributes - Inside Diameter of Inner Spring (in.): 0.760 in.
Product Attributes - Locks Included: No
Product Attributes - Valve Stem Seals Included: No
Product Attributes - Valve Springs Coated: No
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: Polished.

Reference Information

Brand Name/s	Manley Performance
StreetFX SKU	man221440P-1
SFX Item ID	4927904
Supplier Item Code	4927904
Manufacturer SKU	221440P-1
Manufacturer UPC	807298023564
Alternative References	SPRING-1440