Engine Break-In Procedure

Use conventional or break-in oil (non-synthetic) for the first 500 miles of operation. Do not drive for long periods at any single speed, always vary your speed. Do not tow a trailer or put other heavy loads on the vehicle. Check the engine oil and coolant levels daily. 

At 500 Miles change the engine oil and filter using conventional (non-synthetic) oil. Check fuel and ignition settings; adjust valves (where applicable).

After the first 5,000 of service synthetic engine oil may be used. Follow your vehicle owner’s manual for service intervals.

Following the old Hot Rodding adage that there is no substitute for cubes, Ford Racing takes the popular 302 based stroker to the max with the 500 horsepower Z363 crate engine. By taking the bore out to 4.125", the displacement of the popular 347 stroker has been increased to 363 cubic inches. Combined with an improved Mahle piston, the Z363 makes 50 more horsepower and 50 lb. ft. of torque than the Z347 that it replaces. Nothing but the best parts are used inside including: forged crankshaft, forged I-beam connecting rods with floating piston pins and a high performance oiling system. Built with the BOSS 302 block and Z304D aluminum heads, Z363 fits many of the vehicles originally built with a 289 or 302 8.2" deck height block. Ford Racing Engineers designed Z363 to work both on the street and the strip with strong torque curve that delivers over 390 lb ft from 3500 to the 6500 rpm redline. With a compression ratio of 10.0:1, Z363 runs on unleaded premium pump gas.