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DynoCams CM-224 Cam for Predator 224/Wildcat 223
DynoCams CM-224 Non-Welded Camshaft
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DynoCams CM-224 Cam for Predator 224/Wildcat 223

Part Number: CM-224
Online Price: $61.99
DynoCams CM-224 Camshaft for Predator 224 & Wildcat 223 – Mid-Range & Top-End Power
Availability: In Stock.

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Description

DynoCams CM-224 Performance Camshaft for Predator 224 & Wildcat 223 Engines


The DynoCams CM-224 Camshaft is a mild-to-moderate performance cam designed for racers and builders who want strong mid-range and improved top-end power without sacrificing reliability. Compared to the CS-224 grind, the CM-224 features increased intake duration and added overlap, allowing the engine to breathe better at higher RPM.

This cam truly comes alive above 4,500 RPM, making it an excellent choice for engines that spend most of their time at wide-open throttle. If your application prioritizes low-RPM torque below 4,000 RPM—especially with large-valve heads—the CS-224 may be a better fit. However, if you’re chasing more top-end power from a low-lift cam, the CM-224 is the clear winner.


Performance Characteristics

  • Strong mid-range acceleration
  • Noticeable top-end power increase over CS-grind cams
  • Ideal for engines running larger valves and carburetors
  • Best suited for WOT-focused racing applications

For maximum performance, We recommend pairing the CM-224 with:

  • WC946-3 Cylinder Head
  • PE22 Carburetor
  • Engines 236cc and larger respond especially well to this combination


Built for Stroker Compatibility

All DynoCams 224-core camshafts feature:

  • .550” cam journal
  • Narrow lobes for rod clearance
  • Lobe-to-lobe clearancing
  • Thinner compression release for 58mm stroke crankshaft clearance

These design features eliminate the need for crankshaft clearancing when running stroked combinations.


Important Safety Requirements

  • Billet connecting rod required above 6,000 RPM
  • Aluminum or billet flywheel required above 6,000 RPM
    Failure to upgrade rotating components can result in catastrophic engine failure.


Engine Compatibility

Direct-Fit Applications

  • Harbor Freight Predator 224cc Non-Hemi
  • Ducar 224cc Non-Hemi
  • Wildcat 223 Hemi
  • Wildcat 240 Non-Hemi

Also Fits Engines with .550” Cam Journals

  • Predator 212 Hemi
  • Tillotson 212E
  • Ducar 212
  • Honda GX200 / Clone 196cc

Important:
When stroking 196cc or 212cc engines with a 58mm or longer crankshaft, a 224-core camshaft is required to prevent compression release interference.

Does NOT Fit

  • Predator 212 Non-Hemi
  • Predator 224 Hemi


Technical Specifications

Recommended Class: Super Stock
Target (Max) RPM: 7,500
Valve Spring Pressure (Int / Ex): 22 lbs
Valve Lash (Int / Ex): .003"
Ignition Timing: 32° BTDC

Cam Profile


Intake

Exhaust

Open

52.4° BTDC

86.9° BBDC

Close

89.4° ABDC

51.5° ATDC

Lift

.265"

.265"

Centerline

108.0° ATDC

108.0° BTDC

Duration @ .050

236.9°

236.5°


Who Should Choose the CM-224?

Racers running mostly wide-open throttle
Engines needing more mid-range and top-end than CS-grind
Builds with larger valve heads and bigger carbs
Stroker engines using 58mm crankshafts

FAQ

What is the DynoCams CM-224 camshaft designed for?

The CM-224 is designed for racers seeking strong mid-range torque and increased top-end power, especially in applications that run mostly at wide-open throttle. It’s ideal for Predator 224, Wildcat 223, and stroked clone engines.


How does the CM-224 compare to the CS-224 cam?

The CM-224 has:

  • More intake duration
  • Increased overlap
  • Stronger mid-range and top-end power

If you need more torque below 4,000 RPM, the CS-224 is better. If you want more RPM capability and top-end, the CM-224 is the better choice.


What RPM range does the CM-224 work best in?

The CM-224 starts to outperform milder cams around 4,500 RPM and is effective up to 7,500 RPM, depending on valve springs and supporting components.


Do I need a billet rod and flywheel?

Yes.

  • Billet rod required above 6,000 RPM
  • Aluminum or billet flywheel required above 6,000 RPM

These upgrades are mandatory for safety and engine durability.


Will this cam work with stroked engines?

Yes. The CM-224 uses a 224-core camshaft, which is required for engines running 58mm or longer stroke crankshafts. This prevents compression release interference without modifying the crankshaft.


What engines does the CM-224 fit?

Direct fit:

  • Predator 224 Non-Hemi
  • Ducar 224 Non-Hemi
  • Wildcat 223 Hemi
  • Wildcat 240 Non-Hemi

Also fits (.550” cam journal):

  • Predator 212 Hemi
  • Tillotson 212E
  • Ducar 212
  • Honda GX200 / Clone 196cc


What engines does it NOT fit?

  • Predator 212 Non-Hemi
  • Predator 224 Hemi


What valve springs are recommended?

DynoCams recommends 22 lb valve springs for optimal performance and valve control up to the 7,500 RPM target. Stiffer springs may be required for larger valves and ratio rockers.


What carburetor and head combination works best?

For maximum performance:

  • WC946-3 cylinder head
  • PE22 carburetor
  • Engines 236cc or larger see the biggest gains


Is this cam legal for Super Stock classes?

The CM-224 is commonly used in Super Stock-style builds, but legality depends on your sanctioning body and local rules. Always verify cam rules before racing.

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