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COMP Cams 11-739-9 Drag Race Solid Roller Camshaft Chevrolet Big Block - 285/300 396-454

(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)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-739-9
9 reviews
Sale Price

$485.95

Estimated ship date Thursday, November 26

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Product Details

The COMP Cams 11-739-9 is a high-performance solid roller camshaft engineered specifically for drag racing applications in Chevrolet Big Block engines (396-454 cubic inches). This aggressive camshaft delivers a 285/300 duration split designed to maximize top-end horsepower and acceleration for serious competition use.

Key Features:

  • Solid roller design eliminates lifter pumping for consistent high-RPM performance
  • 285/300 duration profile optimized for drag racing power bands
  • Engineered specifically for Chevrolet Big Block 396, 402, 427, and 454 engines
  • Requires compatible solid roller lifters, timing set, and valve springs (sold separately)
  • Designed for race-prepared engines with aftermarket heads and high-compression pistons

This camshaft is intended for dedicated race engines and requires supporting modifications including a high-stall torque converter, aftermarket cylinder heads, headers, and a performance valvetrain. Professional installation and precise valve lash adjustment are essential for optimal performance and engine 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 Exhaust Duration

338

Advertised Intake Duration

318

Basic Operating RPM Range

5,000-9,000

Usage

Strip

Exhaust Valve Lift

0.8

Intake Valve Lift

0.873

Intake Duration at .050 Inch Lift

285

Exhaust Duration at .050 inch Lift

300

Grind Number

318RXD-14

Camshaft Series

Drag Race Xtreme RX

Assembly Lubricant Included

No

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

Cam Type

Solid Roller

Camshaft Material

Billet Steel

Lifter Type

Solid Roller

Engine Family

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

AMAZON ASIN

B000P5B6IK

ordered 4 cans to prime/paint/clear coat some rims. paint came in 2-3 days (incredibly fast). They forgot a can, i emailed and got a reply within 20 minutes, and the can was on my doorstep the next day. im very impressed

Fantastic service and fast shipping! Lowest price on the net for the CAI that I bought!<br><br>This is my new "Go To" website for parts.<br><br>Thanks!

I would def order again from them great price and fast shipping.

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Great price, fast shipping, excellent customer service. I will definitely do business with them in the future.

No problems ordering a leak down tester from Autoplicity which had the lowest price and reasonable shipping charges. The item was well packaged and I would buy from them again.

Great price and easy to work with. Sends tracking numbers and delivers good service

Autoplicity had the best price on the Wiseco pistons I needed anywhere. Took a little longer to arrive than I expected but apparently that was due to the pistons being shipped directly from the factory. Otherwise a very good experience overall.

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