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COMP Cams 11-773-8 Xtreme Energy Solid Roller Camshaft Chevrolet Big Block - 254/260

(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)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-773-8
7 reviews
Sale Price

$577.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Energy 11-773-8 is a high-performance solid roller camshaft designed specifically for Chevrolet Big Block engines ranging from 396 to 454 cubic inches. This aggressive cam profile delivers substantial power gains across the RPM range, making it ideal for street/strip applications and performance-oriented builds.

Camshaft Specifications:

  • Advertised Duration: 254° intake / 260° exhaust
  • Solid roller lifter design for maximum valve control and high-RPM stability
  • Engineered for Chevrolet Big Block V8 engines (396, 402, 427, 454 CI)
  • Xtreme Energy profile optimized for aggressive street and racing applications
  • Provides excellent throttle response and strong mid-range to top-end power

Key Features:

  • Precision-ground on state-of-the-art CNC equipment for exact lobe profiles
  • Heat-treated billet steel core ensures durability under extreme conditions
  • Solid roller design eliminates lifter pump-up at high RPM
  • Requires solid roller lifters, appropriate valvesprings, and retainers (sold separately)
  • Recommended for engines with upgraded valve train components and supporting modifications

This camshaft is designed for dedicated performance applications and requires proper valve train setup including roller lifters, high-performance valve springs, and precise valve lash adjustment. Professional installation and engine tuning are recommended to achieve optimal results.

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

292

Grind Number

XR292R

Intake Valve Lift

0.66

Exhaust Valve Lift

0.666

Intake Duration at .050 Inch Lift

254

Exhaust Duration at .050 inch Lift

260

Basic Operating RPM Range

3200-7,200

Camshaft Material

Austempered Ductile Iron

Cam and Lifter Kit Upgrade

CL11-773-8

K-Kit Upgrade

K11-773-8

SK-Kit Upgrade

SK11-773-8

Usage

Street/Performance

Assembly Lubricant Included

No

Lifters Included

No

LOBE SEPARATION

110

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

Cam Type

Solid Roller

AMAZON ASIN

B000V9AYAQ

Advertised Exhaust Duration

298

Lifter Type

Solid Roller

Engine Family

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

Camshaft Series

Xtreme Energy

Easy to use website, great communication, and product was exactly as described.

Everything went smoothly, love the prices and the ease of transaction, hope to buy from you real soon, Nice people.

Easy

They did not have the part I ordered, but they quickly provided me with a nearly equivilent part! The shipping was fast and it was packed perfectly. I like them peoples!!!

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Unbeatable price and super fast shipping! The website is easy to navigate and there is a wide range of products to choose from. No need to go to the auto parts store when you have Autoplicity.com

Ordered a VP Racing fuel container and fill tube late Friday and it's already on the way. <br>Best price online and very quick service. Great transaction will definitely order from vendor again. <br>Thanks Autoplicity.

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