OPGI.com works best with JavaScript enabled.
1‑800‑243‑8355

As seen on

  • Lokar Car Show Series Logo
  • Car Fix TV Logo

Comp Cams

Camshaft, Comp Cams Thumpr, Big Mutha Thumpr K-Kit, BBC, Hyd Roller

Free Shipping!
Part# : CK16028
Mfg#: K11-602-8
Sold As: Each
Ship Size: Standard
$1,623.99
List Price: $1,786.95
You Save $162.96

Calendar IconArriving Soon
Vehicle Specific View fitment for 4 models
Add To Wishlist 

Big Block Chevrolet 396-454 Big Mutha Thumpr Hydraulic roller Complete Cam Kit by COMP Cams®

Big Mutha Thumpr hydraulic roller complete kit combines the matched camshaft and valvetrain components

This Big Mutha Thumpr hydraulic roller complete cam kit is designed for Big Block Chevrolet 396-454. Valve lift is .570/.554 inch, advertised duration is 299/319 degrees, duration at .050-inch lift is 243/257 degrees, lobe separation is 107 degrees, and the documented operating range is 2300-6100 RPM. Street/strip; very rough idle. The complete K-Kit includes the camshaft, lifters, timing set, valve springs, retainers, locks and valve seals.

• Big Block Chevrolet 396-454 application • Big Mutha Thumpr hydraulic roller design • Valve lift: .570/.554 inch • Duration @ .050: 243/257 degrees • 107-degree lobe separation • Complete K-Kit valvetrain package

Notes

  • APPLICATION FOOTNOTES: [7] Stock springs cannot be used. [10] Requires thrust button & wear plate.
  • This item is not eligible for any further discounts or promotional pricing.
3
This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only. Learn More
We aim to provide accurate and complete product information. If you notice anything incorrect, missing, or unclear, please let us know.
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1964–1977 Chevrolet Chevelle Big-Block Gen IV/V - hydraulic roller [7, 10, 46]
1964–1987 Chevrolet El Camino 1964–1977: Big-Block Gen IV/V - hydraulic roller [7, 10, 46]
1978–1987: K Kit - hydraulic roller [7, 10, 46]
1978–1983 Chevrolet Malibu K Kit - hydraulic roller [7, 10, 46]
1970–1988 Chevrolet Monte Carlo 1970–1977: Big-block Gen IV/V - hydraulic roller [7, 10, 46]
1978–1988: K Kit - hydraulic roller [7, 10, 46]
  • Headshot of OPGI Employee
    Need help finding the right GM restoration parts? Contact a GM Parts Specialist
    Chat Unknown Status Call Toll-Free
    Mon–Fri 8:00–4:30 PT
    Sat 10:00–3:00 PT
     GM Parts Specialist Offline
  • Price Match Guarantee Great parts. Competitive prices. Guaranteed.
  • GM Restoration Experts Since 1982 Over four decades dedicated to GM restoration
  • Original GM Is Our Standard Original GM parts and factory references guide every reproduction
  • A Deeper GM Selection Thousands of restoration, performance, and replacement parts

Customers Who Viewed This Item Also Viewed

Reviews (0)

UH OH! Product reviews didn't load.
Please reload the page, or unblock our review partner Yotpo.com.
Camshaft, Comp Cams Thumpr, Big Mutha Thumpr K-Kit, BBC, Hyd Roller
Comp Cams Camshaft, Comp Cams Thumpr, Big Mutha Thumpr K-Kit, BBC, Hyd Roller