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COMP Cams K11-600-4 Thumpr Hydraulic Flat Cam K-Kit for Chevy Big Block Engine Camshaft Kit - 396-454

(Chevrolet Camaro 1967-72, Corvette 1966-74, Impala 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74 + 106 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

K11-600-4
14 reviews
Sale Price

$701.95

In Stock (7)

delivery box

Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The COMP Cams K11-600-4 Thumpr K-Kit delivers aggressive performance and that signature loping idle sound for Chevrolet Big Block 396-454 engines. This complete camshaft package features a 227/241 duration split designed to maximize torque and throttle response while producing the distinctive muscle car sound enthusiasts crave.

Key Specifications:

  • Advertised Duration: 227°/241° (intake/exhaust)
  • Hydraulic flat tappet design for easy maintenance
  • Optimized for street performance and aggressive sound
  • Compatible with Chevrolet Big Block 396-454 engines

Complete K-Kit Includes:

  • Thumpr hydraulic flat tappet camshaft
  • Hydraulic lifters engineered to match cam profile
  • Performance valve springs with proper seat pressure
  • Valve spring retainers and locks
  • Valve stem seals for positive oil control
  • Timing chain set for precise valve timing
  • Assembly lube to protect components during break-in
  • Installation instructions and COMP Cams decals

This all-in-one kit eliminates the guesswork by providing every valve train component matched specifically to work together. The Thumpr series is designed for street machines where sound and performance are equally important, delivering strong low-end and midrange power with that unmistakable choppy idle.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1966-74, Impala 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74, C10 Pickup 1968-80, Caprice 1966-76, C10 1975-81, El Camino 1966-75, Monte Carlo 1970-75 + 101 more models

Advertised Exhaust Duration

297

Advertised Intake Duration

279

Basic Operating RPM Range

1,800-5,600

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.483

Intake Valve Lift

0.498

Exhaust Duration at .050 inch Lift

241

Camshaft Material

Cast Iron

Kit Type

K-Kit - Complete Kit

AMAZON ASIN

B001S1TBLE

Usage

Street/Performance

Assembly Lubricant Included

Yes

Lifter Type

Hydraulic Flat Tappet

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?

No

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. 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.

Gaskets Included

No

Camshaft Gear Attachment

3-Bolt

Intake Duration at .050 Inch Lift

227

Lifters Included

Yes

LOBE SEPARATION

107

Valve Springs Included

Yes

Camshaft Series

Thumpr

Engine Family

Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)

Both thumbs up on product and delivery.

Great price and service.

Easy checkout! So glad that THMotorsports gives the option for PayPal checkout... makes the process much more hassle-free.

Easey to place ordered arrived in a timely manner

I prefer the old school method of only replacing the wiper blades instead of the entire wiper arm & autoplicity has wiper blades in stock. I received them in less than a week.

Shopping experience was quick and easy, I was able to find exactly what I wanted. I will definitely be using this site again in the future

great customer service

I am totally happy with my experience at Autoplicity.com

Ordered a sling to store my roof rack. There was an issue with the supplier which was quickly resolved by the Autoplicity staff. Great customer service -- most responsive I've ever seen.<br><br>Best prices around.

As long as i recieve the part in a timely fashion this would be rated a five. Site is strange, had truck as vehicle (2000 tundra) and showed no parts, but typed in part # and they came up. Also, did not get 20% coupon code as intro stated.

Super easy to browse web site and find the product I wanted.<br>The price was unmatched.<br>Shipping was fast and cheap.<br>Super shopping experience.

Great prices, helpful customer service. Ordered 2 by mistake. And they got it cleared up real fast. Saved over $80 off retail. Will be ordering from the, again!!!!! <br>

Rather amazing and uneventful service in this day and age. Ordered a Thule bike rack for my Nissan Murano. It was in stock (unusual for high-end specialty products), shipped the next day, and was on my doorstep in a few days (excellent for a 60 lb. large box). I'd buy anything from these people without any reservation. AND, your order is insured - completely superfluous. Oh, and did I mention, the lowest price I could find ANYWHERE, and not by a few dollars - a lot.

Excellent service with the actual stock on hand, shipment was made the next day and a tracking number was provided. I have tried 2 other online supply stores which don't know what they have in stock.

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