Description
Product Overview
The Comp Cams 975-1 is a premium stainless steel single inner valve spring designed for high‑performance engines. Featuring a .953 inch outside diameter and .697 inch inside diameter, this spring delivers a robust 55 lb seat load and a 127 lb open load capacity. Its compact 6 x 4 x 0.5 inch dimensions and lightweight 0.352‑ounce construction make it easy to install while providing exceptional durability and corrosion resistance.
![[Product front view showing all components]](https://www.pelviro.store/wp-content/uploads/2026/06/43b9c7601aa741f3b1618fe4301513f5.jpg)
Usage
This valve spring is ideal for street performance builds, track day racers, and engine rebuild projects where precise valve timing and reliability are critical. It fits a wide range of Chevrolet, Ford, and Mopar applications, ensuring smooth operation under high RPM conditions. Whether you are upgrading a classic muscle car or a modern performance engine, the 975-1 offers the confidence of consistent spring pressure.
Why Choose Us
Comp Cams is renowned for engineering excellence and rigorous quality control. Each spring undergoes heat treatment and stainless steel coating to resist rust and wear, guaranteeing long‑term performance. Our commitment to precision manufacturing means you receive a product that meets exact specifications, reducing the risk of valve float and improving engine efficiency.
Key Features
- Stainless steel construction resists corrosion for lasting durability
- High seat and open load capacities ensure reliable valve control
- Compact size fits tight engine bays without sacrificing strength
- Precision‑engineered dimensions provide consistent performance at high RPMs
- Backed by Comp Cams customer support and warranty for peace of mind
FAQ
What engines are compatible with the 975-1 spring?
The 975-1 fits many Chevrolet, Ford, and Mopar V8 and V6 engines that use a .953″ outer diameter valve spring. Check your engine specifications for exact fit.
Is the spring suitable for high‑performance racing?
Yes, its high seat and open load ratings make it ideal for racing applications where valve control at elevated RPMs is essential.
How does stainless steel benefit this valve spring?
Stainless steel provides superior corrosion resistance, extending the spring’s life even in harsh engine environments.
Can I install this spring myself?
Installation requires basic mechanical tools and knowledge of valve train components. If unsure, consult a professional mechanic.
What warranty does Comp Cams offer?
Comp Cams provides a limited warranty covering manufacturing defects, backed by their dedicated customer service team.






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