Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
SPRING-1.550 DOUBLE
See More Specifications
|
Check the Fit
Estimated Ship Date: May 1, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
221452SF-1
Part Type:
Product Line:
Summit Racing Part Number:
MAN-221452SF-1
UPC:
00807298081489
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Maximum Valve Lift (in.):
0.825 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.550 in.
Coil Bind Height (in.):
1.150 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
618 lbs./in.
Inside Diameter of Inner Spring (in.):
0.800 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Remanufactured:
No
Quantity:
Sold individually.
Installed Height (in.):
2.025 in.
Seat Pressure at Installed Height (lbs.):
250 lbs.
Open Height (in.)(application):
1.200
Open Pressure (lbs.):
750 lbs.
Manley NexTek Valve Springs
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.
Applications
Loading...
Loading...
Questions & Answers
Ask a Question
What type of question would you like to submit?
I have a Customer Service question
(order, shipping, returns, protection plans, etc.). Customer Service Question
(order, shipping, returns, protection plans, etc.). Customer Service Question
- OR -
I would like to ask other customers
a question about this Product. Product Related Question
a question about this Product. Product Related Question
Loading...
Reviews Write a Review
Some parts are not legal for use in California or other states with similar laws / regulations
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Email this page
