Re: wich is the counter rotating engine
Its really going to depend on which ratio transmission is on the engines. The easiest way is to stand infront of the engines and face aft. Watch the pullies on the front of the engine. The one that turns clockwise is the standard rotation, the one that turns counter-clockwise is the counter-rotating engine. As for the standard rotation engine, you can use a standard 318 but you would want to find one from early 70's before they started reducing the compression ratio. Of course on both you would need to change the casting plugs out for brass and replace the head gaskets. The front timing cover on both is usually made out of alum and has a habit of corroding thru and leaking water into the engine if salt water cooled. FWC'ed engines never have this problem.You can use a standard engine with modifications for the counter-rotating engine. First the cam has to be changed and the crankshaft. The reason behind changing the crankshaft is the area at the rear seal. There is grooves cut in the crank that slings the oil away from the seal in a standard engine. To use this same crank in a counter-rotating engine, slings the oil out the rear seal. Found that one out the hard way years ago. Be sure you have the later model 318. Some older wide block 318's are still out there and are hard to find parts for but they were usually found in boats from the 60's.