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COMP Cams 11-298-4 Hydraulic Flat Tappet Camshaft for Chevrolet Big Block 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 + 105 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-298-4
6 reviews
Sale Price

$266.56

1 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams 11-298-4 High Energy 252AH-10 camshaft is a hydraulic flat tappet performance camshaft designed specifically for Chevrolet Big Block engines (396-454 cubic inches). This camshaft delivers a significant increase in mid-range power and torque over stock, making it an excellent choice for street performance applications and mild towing/RV use.

Camshaft Specifications:

  • Advertised Duration: 252°/252° (intake/exhaust)
  • Duration at .050": 207°/207°
  • Valve Lift: .447"/.447" (with 1.7:1 rocker ratio)
  • Lobe Separation Angle: 110°
  • Hydraulic flat tappet design for quiet, reliable operation
  • Requires valve springs upgrade (not included)

Performance Characteristics:

  • Idle quality: Smooth to mild lope
  • Power range: 1,500-5,500 RPM
  • Excellent street manners with improved throttle response
  • Compatible with stock torque converters and rear gears
  • Works with both manual and automatic transmissions

This camshaft is part of COMP Cams' High Energy series, known for providing reliable performance gains without sacrificing driveability. The hydraulic flat tappet design eliminates the need for valve lash adjustments, making it a low-maintenance performance upgrade. Recommended for engines with compression ratios between 9.0:1 and 10.5:1.

Note: Professional installation recommended. Requires assembly lube during installation and proper break-in procedure. Camshaft is compatible with stock valve springs in most applications, but verification is recommended.

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 + 100 more models

Advertised Exhaust Duration

260

Basic Operating RPM Range

800-4,200

Grind Number

252AH-10

Cam Type

Hydraulic Flat Tappet

Intake Valve Lift

0.46

Intake Duration at .050 Inch Lift

206

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL11-298-4

K-Kit Upgrade

K11-298-4

SK-Kit Upgrade

SK11-298-4

Usage

OEM

Assembly Lubricant Included

Yes

Lifters Included

No

LOBE SEPARATION

110

Valve Springs Required

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.

Camshaft Gear Attachment

3-Bolt

AMAZON ASIN

B001G7ER6O

Exhaust Duration at .050 inch Lift

212

Advertised Intake Duration

252

Exhaust Valve Lift

0.475

GGreat so far

product just as described, received in 3 days

I paid for 2nd day shipping and 5 days later they were shipped out. So, I should receive my rotors in a full week from when I paid for 2 day shipping. I called customer service and they discounted the shipping rate to ground service. At least they were polite and helpful in the phone.

Great prices will shop here again.

Good price for great name brand car parts. AEM fuel filter very low price and new. Hope the shipping is as great as the price. :)

Excellent on-line merchant with outstanding customer service and the best prices on equipment and shipping. Highly reccomended!

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