Like most Chrysler marine engines, this one still runs fine and is connected to a Volvo Penta-style outdrive unit which is common for the era. The serial number of the engine begins in the number ...

Engine ID: A Poly Primer Chrysler's poly-head engine is unmistakably unique from other Mopar engines. It is easily distinguished from the later LA counterparts by its wide stance in the engine bay ...

In the Grand Cherokee, the V-6 produces 280 horsepower 6400 rpm and 260 lb.-ft. of torque at 4800 rpm. Chrysler says 90% of peak torque is available from 1600 to 6400 rpm.