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COMP Cams 11-406-5 Blower/Turbo 270/280 Solid Flat Tappet Camshaft for Chevy Big Block 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

11-406-5
4 reviews
Sale Price

$325.95

In Stock (10+)

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Product Details

The COMP Cams 11-406-5 is a high-performance solid flat tappet camshaft specifically designed for forced induction applications on Chevrolet Big Block engines (396-454 cubic inches). This camshaft features aggressive 270/280 duration specifications optimized for blower and turbo setups, delivering excellent power gains in the mid-to-upper RPM range while maintaining compatibility with forced induction systems.

Key Specifications:

  • Advertised Duration: 270° intake / 280° exhaust
  • Duration @ .050": 224° intake / 230° exhaust
  • Valve Lift (with 1.7 rocker ratio): .462" intake / .488" exhaust
  • Lobe Separation Angle: 112°
  • Recommended RPM Range: 2,000-6,200 RPM
  • Solid flat tappet design for maximum durability under boost

Features & Benefits:

  • Optimized for supercharged and turbocharged BBC engines
  • Wider lobe separation angle helps control cylinder pressure with forced induction
  • Solid lifter design eliminates lifter pump-up at high RPM
  • Excellent choice for street/strip and competition applications
  • Compatible with stock or aftermarket cylinder heads
  • Requires solid/mechanical lifters and adjustable valvetrain components

This camshaft is ideal for enthusiasts building serious horsepower with forced induction on Chevrolet Big Block engines. Proper valvetrain components, break-in procedures, and tuning are essential for optimal performance and longevity.

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

320

Advertised Intake Duration

310

Grind Number

310BS

Lifter Type

Solid Flat Tappet

Exhaust Valve Lift

0.637

Intake Valve Lift

0.637

Intake Duration at .050 Inch Lift

270

Exhaust Duration at .050 inch Lift

280

Basic Operating RPM Range

4,000-7500

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL11-406-5

K-Kit Upgrade

K11-406-5

SK-Kit Upgrade

SK11-406-5

Cam Type

Solid Flat Tappet

Usage

Street/Performance

Assembly Lubricant Included

Yes

Lifters Included

No

Valve Springs Required

Yes

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.

Camshaft Gear Attachment

3-Bolt

LOBE SEPARATION

114

AMAZON ASIN

B000P5G5JA

Camshaft Series

Blower and Turbo

Engine Family

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

Title

Blower and Turbo 270/280 Solid Flat Cam for Chevrolet Big Block 396-454

WHOA!!!! Best price around! I ordered on a Friday night and had the items the following Tuesday! You can't beat that with a wooden spoon!!! Autoplicity HAS been bookmarked for future orders. They are the Crutchfield of auto parts!

Autoplicity had the item I wanted at a cheaper price than anybody online or in stores. They didn't have the item in stock, but they were very informative as to the status of my item. They have shown unheard of customer service via email since the inception of my order. I will definitely do business with them again.

Autoplicity got my air filters shipped next day after I placed my order. Cheap prices, and good customer is what they stand for. I will definitely be looking at their site in the future for my car needs. <br>

Processed and shipped fast. I was a little upset with them shipping my Eibach springs in the Eibach box, and not repackaging it. Everyone could see the box, and knew what was in it. But this will not stop me from ordering again.

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