Notes:

• New GM crate engine
• Tinware includes Timing cover, valve cover, oil pan, water pump, distributor, coil, flywheel, and damper
• Standard rotation
• Will replace 2.5 and early 3.0 (1967-1990) engine with purchase of updated 12-3/4" flywheel and engine coupler.
• 1991-1997 must use original flywheel

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.

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