McCulloch 40hp Custom vs Johnson 40hp (2-Stroke)
40hp Custom
40hp (2-Stroke)
| Spec | McCulloch 40hp Custom | Johnson 40hp (2-Stroke) |
|---|---|---|
| Power & Performance | ||
| Horsepower | 40 HP | 40 HP |
| Displacement | 691 cc | 737 cc ← |
| Configuration | 2 Cyl / Inline-2 | 2 Cyl / Inline |
| Weights & Dimensions | ||
| Dry Weight | 63 kg (139 lbs) ← | 64 kg (141 lbs) |
| Mechanical & Electrical | ||
| Gear Ratio | 1.85 | 2.42 |
| Alternator | 126 W | 144 W ← |
| Fuel Delivery | Carbureted | Carbureted |
| Maintenance | ||
| Spark Plug | Champion J4C | Champion QL77JC4 |
| Engine Oil | TC-W3 2-Stroke | |
Technical Comparison Analysis
Power & Displacement
Comparing the McCulloch 40hp Custom and Johnson 40hp (2-Stroke) shows a displacement difference of 46cc. The Johnson features a larger 737cc block, which typically provides superior low-end torque and better hole-shot performance when pushing heavy loads or reaching planning speeds.
Weight & Rigging
In terms of transom weight, the McCulloch is the lighter option at 63kg, offering a weight saving of 1kg over its competitor. This weight reduction is critical for smaller hulls or boats with limited transom capacity where every kilogram affects the center of gravity and drainage efficiency.
Electrical & Features
For boats equipped with modern electronics, sonar, and shallow-water anchors, the Johnson offers the best charging performance with a 144W alternator. Choosing the right power-to-weight profile between these two 2-stroke engines depends heavily on your specific boat's displacement and daily power requirements.