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

COMP Cams 987-12 Dual Valve Springs 1.430" OD

(Chevrolet Silverado 1500 1999-2003, Camaro 1967-81, S10 1988-2003, Impala 1963-74, 1977-84, Malibu 1964-67, 1973-83, C1500 1988-98 + 49 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

987-12
13 reviews
Sale Price

$88.81

Estimated ship date Wednesday, November 25

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

COMP Cams 987-12 dual valve springs are engineered to deliver the precise spring pressure needed for high-performance camshafts, both at valve seat and maximum lift. Manufactured from super clean wire and subjected to rigorous quality control testing, these springs provide superior strength, durability, and valve train stability across a wide range of applications.

Key Specifications:

  • Outer diameter: 1.430 inches
  • Inner diameter: 0.697 inches
  • Spring rate: 370 lbs/in
  • Installed height: 1.750 inches
  • Installed pressure: 121 lbs at 1.800 inches
  • Open pressure: 343 lbs at 1.200 inches
  • Maximum lift: 0.590 inches
  • Coil bind height: 1.15 inches

Performance Features:

  • Dual spring design creates a stronger valve spring capable of handling increased lift in extreme stress applications
  • Compatible with mechanical (solid) camshafts
  • Designed to work with COMP Cams 984-series camshaft kits
  • Exceeds the expectations of professional engine builders and racers

These dual valve springs are ideal for performance and racing applications where reliable valve control is critical. The dual spring configuration provides enhanced valve train stability and reduces the risk of valve float at high RPM.

Products specifications

Fits

Chevrolet Silverado 1500 1999-2003, Camaro 1967-81, S10 1988-2003, Impala 1963-74, 1977-84, Malibu 1964-67, 1973-83, C1500 1988-98, Chevelle 1964-73, Blazer 1969-74, 1995-2003, K1500 1988-98, C10 Pickup 1963-74 + 45 more models

Coated

No

Coil Bind Height (in)

1.150 in.

Damper Spring Included

Yes

Inside Diameter of Inner Spring (in)

0.697 in.

Inside Diameter of Outer Spring (in)

1.070 in.

Number of Springs Per Valve

Dual

Outside Diameter of Outer Spring (in)

1.430 in.

Quantity

Sold as a set of 12.

Spring Rate (lbs/in)

370 lbs./in.

Valve Spring Style

Standard

Title

987-12 Valve Springs, for 984-975

Spring Type

Double

Camshaft Type

Hydraulic

Coil Bind Height (in.)

1.145

Inside Diameter (in.)

0.697

Installed Height (in.)

1.75

Installed Pressure (lbs.)

138

Open Height (in.)

1.25

Open Pressure (lbs.)

325

Outside Diameter (in.)

1.43

Spring Rate (lbs./in.)

344

no problem so far

easy - nice site

Arrived timely, was the correct part.

Showed inventory..good online service

Excellent service and excellent super fast delivery add to that the best price for the tire . Highly recommend to do business with no hesitation.

They were Very quick and i was very happy with the service i got!! 9-10*

Best price I could find on the web even after paying for shipping! Shipped in a couple of days and great service!

easy transaction

Good

Ordered a CAI kit and Autoplicity had the lowest price. They're website didn't correctly match my vehicle to the product and it took a few days to ship. They're support was friendly and quick when I emailed them about the delay.

Great customer service, item shipped quickly. Very satisfied.

I couldn't find these ARP studs anywhere else for this price! $20 less than ANYWHERE! Definitely coming back to shop at Autoplicity.

This is the easiest purchase I ever made. The visor is great and installation was a breeze. The service by Autoplicity was A-1. Shipping was better than standard. Will buy from them again.

Share icon
Return Policy
Returns are easy at THMotorsports

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