What are the specs of an OMC Cobra?
The Gear ratio was 1.4:1and had a maximum rpm of 4,400. The spline count was 15. The OMC Cobra Diesel was a 970 pound, three point two liter, six-cylinder monoblock inline powerhouse that produced 205 horsepower at 4,300 rpm. Early issues with the gear-set and shift cables resulted in several redesigns.
What’s the horsepower of a 4.3 OMC engine?
Presumably you could work out a suitable prop size by noting the original sterndrive prop size and gear ratio, and compare that with your inboard gear ratio and consult some tables. Assuming the engine is in the same boat. The 4.3 is rated to 4400-4800 RPM not 3000. Google “4.3 omc engine torque hp graph” and you’ll get the information.
When did the OMC Cobra 2.3L come out?
Standard OMC Cobra 2.3L, 3.0L, 4.3L, 5.0L, 5.7L, 5.8L Produced 1986 – 1993 OEM parts are readily available for these units.
Can a 3.0L Cobra be replaced with a 4.3L?
No announcement yet. I have been considering the possibility of going a little bigger and installing a 4.3 V-6 to replace my 3.0L. Assuming I have a complete cobra 4.3L engine including manifolds, here’s what I figure I need to make it work. 1. new/different correctly geared upper unit OD. 2. y pipe double exhaust. 3. Create motor mount footings.
How many horsepower does an OMC Cobra have?
The Cobra was paired with many engines and installed on a wide variety of watercraft. The Cobra first shipped in 1985. Designed for both boat builders and consumers, its 7.5-liter engine delivered 340 horsepower. In 1989 a 5.80liter model was available.
Where is the attaching point on a OMC Cobra?
The attaching point is port side, on the front face of drive. OEM parts are readily available for these units. Built properly, these units will last for the life of the boat. The main issue with the shift dog clutch units is the shift cable maintenance.
Is the OMC Cobra All American Drive service?
Most of these units sit behind 460 Fords, another very reliable piece, it’s a hard package to beat. A good number of the OEM, key parts, are now N.L.A. for these units. We do some repairs on these units, depending on the particular issue.
Can a GM 3.0 Liter base marine engine be used?
The GM 3.0 Liter 181 Marine base engine offers a new DIRECT REPLACEMENT repower option for applications that are 1990 and newer. If your engine is 1989 or earlier you may be able to use this engine but additional parts may be needed such as a Flywheel and Coupling, and possibly a new Exhaust Manifold.