Suzuki DF300 V6 vs Johnson 300hp V8 Looper

Suzuki

DF300 V6

2010 · 300 HP · 4-Stroke
VS
Johnson

300hp V8 Looper

1995 · 300 HP · 2-Stroke
Spec Suzuki DF300 V6 Johnson 300hp V8 Looper
Power & Performance
Horsepower 300 HP 300 HP
Displacement 4028 cc ← 4000 cc
Configuration 6 Cyl / V6 55° 8 Cyl / V8 90°
Weights & Dimensions
Dry Weight 260 kg (573 lbs) 260 kg (573 lbs)
Mechanical & Electrical
Gear Ratio 2.08:1 1.86
Alternator 777 W ← 441 W
Fuel Delivery Sequential EFI Carbureted
Maintenance
Spark Plug NGK BKR6E Champion QL78YC
Engine Oil Suzuki 10W-40 VRO Injection

Technical Comparison Analysis

Power & Displacement

Comparing the Suzuki DF300 V6 and Johnson 300hp V8 Looper shows a displacement difference of 28cc. The Suzuki features a larger 4028cc 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 Johnson is the lighter option at 260kg, offering a weight saving of 0kg 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 Suzuki offers the best charging performance with a 777W alternator. Choosing the right power-to-weight profile between these two 4-stroke engines depends heavily on your specific boat's displacement and daily power requirements.