My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

COMP Cams 24-278-4 Street/Strip Hydraulic Flat Tappet Camshaft 227/227 Chrysler 426 Hemi

(1966-1971 Dodge Charger; 1970-1971 Dodge Challenger; 1967-1971 Dodge Coronet; 1968-1971 Plymouth Road Runner; 1968-1971 Plymouth GTX; 1970-1971 Plymouth Cuda)

Manufacturer

Part Number

24-278-4
Sale Price

$309.95

3 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams 24-278-4 is a high-performance hydraulic flat tappet camshaft engineered specifically for the legendary Chrysler 426 Hemi engine. This dual-purpose street/strip camshaft delivers an aggressive performance profile with 227 degrees of advertised duration on both intake and exhaust, making it ideal for muscle car enthusiasts seeking substantial power gains without sacrificing streetability.

Key Features:

  • Hydraulic flat tappet design for reliable operation and reduced maintenance
  • 227°/227° advertised duration provides strong mid-range to top-end power
  • Engineered specifically for Chrysler 426 Hemi applications
  • Street/strip performance profile balances drivability with race-inspired power
  • Manufactured from premium materials with precision CNC grinding
  • Compatible with stock valve springs and hydraulic lifters

This camshaft is designed for enthusiasts building a serious street machine or weekend bracket racer. The hydraulic flat tappet design maintains quiet operation and eliminates the need for constant valve lash adjustments while delivering the aggressive cam profile demanded by performance Hemi builds. Ideal for applications running 9.5:1 to 11:1 compression ratios with headers and performance intake manifolds.

Products specifications

Fits

1966-1971 Dodge Charger; 1970-1971 Dodge Challenger; 1967-1971 Dodge Coronet; 1968-1971 Plymouth Road Runner; 1968-1971 Plymouth GTX; 1970-1971 Plymouth Cuda

Basic Operating RPM Range

2,000-5,000

Usage

Strip

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.486

Intake Valve Lift

0.502

Grind Number

278A-8

Camshaft Material

Cast Iron

Engine Family

Chrysler 426 HEMI 8 Cylinder (1966-1971)

Camshaft Series

Street and Strip

AMAZON ASIN

B000N5OLNY

Assembly Lubricant Included

Yes

Lifters Included

No

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

Intake Duration at .050 Inch Lift

227

Advertised Exhaust Duration

278

LOBE SEPARATION

108

Exhaust Duration at .050 inch Lift

227

Advertised Intake Duration

278

Order 12486. Item was simple to find and the website made it very easy to navigate. I appreciated the ability to pay with paypal and email notifications gave me confidence that everything was taken care of properly.

Excellent

Great Prices and fast, fast shipping. I will definitely do business with them again.

Ordered some fluid coolers for a project, great price, easy website, FAST shipping!

Very fast, simple, and easy

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy