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COMP Cams 11-605-5 Magnum Solid Flat Tappet Camshaft Chevy BBC - 270/276 for 396-454

(Chevrolet Camaro 1967-72, Corvette 1967-74, Impala 1967-76, Malibu 1967, 1973-75, C1500 1990-93, Chevelle 1967-73, Blazer 1973-74 + 104 more models)

Part of: COMP Cams Magnum Solid Flat Tappet Camshaft Ford

Other options in this family: COMP Cams 32-237-4 COMP Cams 32-239-4 COMP Cams 11-217-4 COMP Cams 20-246-4 COMP Cams 32-240-4

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-605-5
6 reviews
Sale Price

$329.95

Estimated ship date Monday, November 23

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Product Details

The COMP Cams 11-605-5 Magnum camshaft is a high-performance solid flat tappet cam designed specifically for Chevrolet Big Block engines (396-454 cubic inches). Engineered for marine and drag racing applications, this camshaft delivers aggressive performance characteristics ideal for competition use where maximum power output is the priority.

Key Specifications:

  • Advertised duration: 270° intake / 276° exhaust
  • Solid (mechanical) flat tappet design for maximum durability and precise valve control
  • Magnum series profile optimized for marine and drag racing environments
  • Direct fit for Chevrolet Big Block V8 engines (396, 402, 427, 454 cubic inch)
  • Requires solid lifters, performance valve springs, and proper break-in procedure

Performance Features:

  • Aggressive lobe profiles deliver strong mid-range to top-end power
  • Solid lifter design eliminates pump-up at high RPM for consistent valve timing
  • Marine-specific design accounts for sustained high-load operation
  • Ideal for drag racing applications requiring quick acceleration and high RPM capability

This camshaft is intended for competition use and will produce a rough idle. Professional installation and supporting valvetrain components are required for optimal performance and reliability. Proper cam break-in procedure must be followed to ensure longevity.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1967-74, Impala 1967-76, Malibu 1967, 1973-75, C1500 1990-93, Chevelle 1967-73, Blazer 1973-74, C10 Pickup 1968-74, Caprice 1967-76, C10 1975-80, El Camino 1967-75, Monte Carlo 1970-75 + 99 more models

Advertised Intake Duration

310

Lifter Type

Solid Flat Tappet

Exhaust Valve Lift

0.631

Intake Valve Lift

0.638

Intake Duration at .050 Inch Lift

270

Exhaust Duration at .050 inch Lift

276

Grind Number

310B-8

Basic Operating RPM Range

4,200-7200

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL11-605-5

K-Kit Upgrade

K11-605-5

Camshaft Series

Magnum Marine

SK-Kit Upgrade

SK11-605-5

Cam Type

Solid Flat Tappet

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

Usage

Marine

AMAZON ASIN

B000V9HYNQ

LOBE SEPARATION

108

Advertised Exhaust Duration

314

Engine Family

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

Picked you guys from a number of parts sites for the best price including shipping.

Great prices. Fast Shipping. I would definitely do business again.

I ordered online with autoplicity via google checkout. It was easy and a real good price compared to other sites. The communication was great every step of the way. Order confirmation, order tracking number and shipping number. Super fast shipping for a heavy item (springs)and was in perfect condition. I Will shop with them again.

Hands down the best price on the Magnaflow catback I have seen by more than 20%. They were able to work out the ship-from-manufacturer tracking after a quick phone call. Will definately be recommending these guys to others.

Great prices on the products I want. Quick shipping.

awesome price and super fast shipping. I will use again. Thanks

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