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COMP Cams 978-16 Dual Valve Spring Kit

(Jeep Grand Cherokee 1993-2002, Grand Wagoneer 1993; GMC G2500 1979-95, Yukon 1992-98, K1500 1979-86, 1988-98, C1500 1979-86, 1988-98 + 329 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

978-16
11 reviews
Sale Price

$166.08

Estimated ship date Friday, November 27

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Product Details

The COMP Cams 978-16 is a high-performance dual valve spring kit designed for serious engine builders and performance enthusiasts.

Key Features:

  • Dual spring design with integrated damper for enhanced valve control
  • 403 lb/in spring rate for reliable performance
  • 1.460" outer diameter, 0.697" inner diameter
  • Seat pressure: 127 lbs at 1.850" installed height
  • Open pressure: 369 lbs for excellent valve control
  • Coil bind height: 1.195"
  • Maximum lift approximately 0.590" at recommended installed height
  • Compatible with 740-16 retainers and 4770-16 spring seats

The dual spring design creates a stronger valve spring assembly capable of handling the increased lift and stress found in high-performance and racing applications. Whether you're building a street performance engine or a competition powerplant, these valve springs deliver the precise spring pressure needed to match your camshaft and maximize engine potential. Ideal for hydraulic flat tappet and street hydraulic roller cam applications.

Products specifications

Fits

Jeep Grand Cherokee 1993-2002, Grand Wagoneer 1993; GMC G2500 1979-95, Yukon 1992-98, K1500 1979-86, 1988-98, C1500 1979-86, 1988-98, K2500 1979-86, 1988-98, Jimmy 1970-91, Savana 2500 1996-98, Savana 3500 1996-98 + 325 more models

Number of Springs

2

Inner Spring Inside Diameter

0.697

Outer Spring Inside Diameter

1.06

Coil Bind Height

1.195

Outer Spring Outside Diameter

1.46

Seat Height

1.85

Seat Pressure

127

Spring Rate

403

Compatible Spring Cup (O.D. Locator)

4704-16

Compatible Shims

4755

Compatible Retainer

740-16

Damper

Yes

Compatible .570" Guide Diameter Spring Seats

4770-16

AMAZON ASIN

B00062YHE2

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

Yes

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exemption Reason

No impact on pollution output of vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

This site is easy, fast, and accurate to use.

easy to navigate the site.

found what i was looking for in 5 minutes

Good service good prices

Super easy so far! Assuming everything arrives on time and fits properly I’ll definitely be ordering from your site again!

Best prices, Super fast shipping!

Great site. I received my product quickly and it was the product I ordered.

After weeks of shopping around, I was able to find the best price from Autoplicity. The ordering process was very simple since I had the option to pay through my Amazon account. Great experience.

Easy, best price.

These guys have the best prices available online. There customer service is on point as well.

Authentic, hard to find item listed for the least expensive price online! Good customer service and fast shipping time!!

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