Chevrolet
ATK Core Return Process
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Please CLICK HERE for ATK Core Return Process
Notes:
- Tinware includes oil pan, front cover, and valve covers
- Block Cast #: 880
- Roller cam
- 1 piece rear main seal
- 2 bolt main
- Plastic front cover with sensor hole
- Center-bolt valve covers
- Electric fuel pump
- 8 bolt intake (Vortec heads)
Engine Break-In Procedure
Use or break-in oil or conventional (non-synthetic) multi-viscosity oil with zinc additive for the first 30 hours of operation. Avoid hard acceleration for sustained periods. Periodically change the engine speed to help seat the rings. While the engine is running, be sure to check oil pressure and coolant temperature, and check for fluid leaks, such as oil, fuel, and coolant/antifreeze. Also listen for any unusual sounds. Should you hear an unusual sound, shut the engine off, check for the source, and correct it.
Engines with flat tappet cams only - Start the engine and bring it to 2,000 RPM. Get the engine running smoothly. Then vary the engine speed from 1,800-2,200 RPM in a slow acceleration/deceleration cycle for 30 minutes. This is necessary to provide adequate oil splash and lifter rotation to properly mate each lifter to its lobe.
After 30 hours of operation change the engine oil and filter. For flat tappet cam engines, continued use of oil with zinc or a zinc additive for the life of your engine is recommended.
Specifications:
What is the compression ratio?
Are all the engine plugs rated for sea water use?
Does this engine have factory Gm heads or aftermarket
I have a 5.7 vortec engine labeled as a 357 Magnum but it has a mechanical fuel pump. Will your engine accept a mechanical fuel pump?
is this standard rotation or RH rotation
What horse power rating is this engine. what are cam specs? Trying to match other engine in boat.
What oil is recommended for this roller tappet motor?
I have a 350 vortec engine with cast numbers 880 but mine is a 4 bolt main I noticed yours is a 2 bolt . Is this still ok to swop out with mine
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.