ATK Engines Remanufactured Crate Engine for 1987-1995 Chevy & GMC C/K Truck, SUV, & Van with 350ci/5.7L V8

Notes:

• Tinware includes valve covers, oil pan, timing cover
• VIN K, M (D for Hummer)
• Head Cast #: 191, 193
• Block Cast #: 638, 548, 727, 148, 880
• 4 bolt main
• Roller cam
• Center bolt valve covers

Engine Break-In Procedure

Use conventional or break-in oil (non-synthetic) for the first 600 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 600 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.