LS Gen III/IV
ATK Core Return Process
JEGS and ATK appreciate your business and want to ensure that your core return is as smooth as possible.
Please CLICK HERE for ATK Core Return Process
This short block is meant for a mild street build or a replacement for a worn short block.
Engine Information:
- Block: Seasoned 6.0L Cast #364 or 184
- Bore/Stroke: 4.030 in. x 3.622 in.
- Year Range: 2001-2007
- Camshaft Bearings: Installed and clocked to OEM position
- Freeze Plugs: Installed and sealed
- Oil Galley Plugs: Installed and sealed
Rotating Assembly:
- Crankshaft: OE 3.622 in. stroke internally balanced 24 tooth reluctor wheel
- Rods: OE Forged Powder Metal 6.093 in. with stock bolts
- Pistons: OE Hypereutectic Flat Top with no valve reliefs
- Piston Rings: Moly rings
- Compression Ratio: 64 cc = 10.7:1 / 68 cc = 10.2:1 / 72 cc = 9.4:1
Recommend Components:
- Harmonic Balancer: Stock, Internally balanced
- Flexplate: Stock, Internally balanced
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Specifications:
What is the hp rating on this short block?
Will this fit in a 2007 tahoe?
How much boost can this setup handle. I'm thinking about adding a Whipple supercharger to it. What the ring gap?
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.