My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Elgin RV-9937S High Performance Conical Valve Spring

Manufacturer

Picture for manufacturer Elgin

Part Number

RV-9937S
4 reviews
Sale Price

$8.99

4 left at this price

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Elgin RV-9937S is a high-performance inverted conical valve spring designed for GM LS-series engines and other performance applications. This premium valve spring is engineered to upgrade stock engines to street/strip or oval track performance levels when paired with an upgraded camshaft and valvetrain components.

Key Specifications:

  • Outer diameter: 1.290 inches
  • Inner diameter: 0.660 inches
  • Seat pressure: 130 lbs at 1.800 inches installed height
  • Open pressure: 318 lbs at 1.200 inches
  • Spring rate: 313 lbs/inch
  • Maximum suggested lift: 0.600 inches
  • Coil bind: 1.120 inches
  • Single spring design without damper

Conical Design Benefits:

  • Superior valvetrain stabilization and damping characteristics
  • Progressive diameter design gives each coil its own frequency
  • Reduces load and increases peak RPM capabilities
  • Enables use of more aggressive camshaft profiles
  • Eliminates concerns with wear and interference contact

Manufactured by Elgin Industries, a trusted name in engine components since 1919, these valve springs are precision-wound from high-quality spring wire to exact specifications. Ideal for performance builds requiring reliable valve control at elevated engine speeds. This part is sold individually (single spring).

I spent hrs looking and researching parts and prices... Hands down Autoplicity<br> has it and at the best price you'll find!!

smooth

There was no description with my item but the part number is correct so I'm optimistic.

Autoplicity has great prices and products are shipped promptly. My trailer hitch arrived the day after it was shipped. Autoplicity sent a tracking number. I would order again.

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy