| Maker | Ranger SGV-770B-5 | Rover L267 | Sky 70 | Warner Super Scarab 50 | Warner Scarab 50 | Warner Scarab Junior 50 | Warner Super Scarab 165 |
| Arrangement | Inverted V | Inverted In-Line | Inverted In-LIne | Radial | Radial | Radial | Radial |
| Cooling | Air | Air | >Air | Air | Air | Air | Air |
| No of Cyls | 12 | 4 | 4 | 7 | 7 | 5 | 7 |
| Bore/Stroke | 4.0" x 5.125" | 4.125" x 5.0" | 3.875" x 4.25" | 4.625" x 4.25" | 4.25" x 4.25" | 4.625" x 4.25" | 4.625" x 4.25" |
| Displacement | 773 cu ins | 267 cu ins | 200 cu ins | 499 cu ins | 422 cu ins | 301 cu ins | 500 cu ins |
| Comp Ratio | 6:1 | 5.1:1 | 6.25:1 | 5.55:1 | 5.2:1 | 5.2:1 | 6.4:1 |
| bmep Cruise | 123 | 113 | 94 | 112 | 115 | 117 | 123 |
| Blower ratio | 8.84:1 | N/A | N/A | N/A | N/A | N/A | N/A |
| Cyl Material | Steel | Steel | Cast Iron | Steel | Steel | Steel | Steel |
| Valves per cyl | 1 Inl 1 Exh | 1 Inl 1 Exh | 1 Inl 1 Exh | 1 Inl 1 Exh | 1 Inl 1 Exh | 1 Inl 1 Exh | 1 Inl 1 Exh |
| Valve Arr. | OHC | OHV | OHC | OHV | OHV | OHV | OHV |
| HP max - not Take-Off | 420 | 75 | 60 | 145 | 125 | 90 | 165 |
| @ RPM | 2800 | 1975 | 2050 | 2050 | 2050 | 2025 | 2100 |
| @ Altitude | 3000ft | Sea Level | Sea Level | Sea Level | Sea Level | Sea Level | Sea Level |
| HP Take-Off | 450 | NA | NA | 145 | 125 | 90 | 175 |
| @ RPM | 2900 | NA | NA | 2050 | 2050 | 2025 | 2250 |
| HP Cruise | 300 | NA | 45 | 75% of max | 75% of max | 75% of max | 75% of max |
| @ RPM | 2500 | NA | 1900 | NA | NA | NA | NA |
| Fuel Octane | 87 | 78 | 73 | 73 | 73 | 73 | 73 |
| Prop Drive | Geared | Direct | Direct | Direct | Direct | Direct | Direct |
| Dry Weight | 640lbs | 225lbs | 178lbs | 305lbs | 285lbs | 230lbs | 332lbs |
| lb/Cruise HP | 2.13 | 3.0 | 3.96 | 2.10 | 2.28 | 2.56 | 2.01 |
| Carb(s) | 1x Stromberg | 1x Stromberg | 1x Link | 2x Stromberg | 2x Stromberg | 1x Holley | 1x Stromberg |
| Ignition | Scintilla Mag(1) | Scintilla Mag(2) | Edison Splitdorf Mag(2) | Bosch or Scintilla Mag/Battery/td> | Bosch or Scintilla Mag/Battery | Scintilla Mag(1) | Scintilla Mag(2) |
| Electric Starter | Eclipse | NA | NA | Eclipse | Eclipse | Eclipse | Eclipse |
| Length | 61.312" | 42.25" | 40" | 14" | 14" | 14" | 30.39" |
| Height/O.D. | 32.25" | 31.875" | 27" | 36.562" | 36.562" | 36.562" | 37.250" |
| Width | 28" | 16.50" | 19" | NA | NA | NA | NA |
| Ht above bed | 12.50" | 4.59" | 5" | NA | NA | NA | NA |
| Mount Dia | 13.25" | 14" | 13.50" | 17" | 17" | 17" | 17.5" |