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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
NOTE:
- Core return can be any 1971-2003 Small Block Chrysler 360ci engine
Engine Specifications
This JEGS crate engine has a stock idle, produces a great vacuum, and provides plenty of power for cruising streets.
- Horsepower: 310 hp
- Torque: 400 ft.-lbs.
Block Information:
- Seasoned OE 2 Magnum roller block 1993-2001
- Bore/Stroke: 4.060 in, x 3.580 in.
- Displacement: 360 ci
Rotating Assembly:
- Crankshaft: OE cast
- Balance: External front, internal rear
- Rods: OE 6.123 in.
- Compression Ratio: 9.1:1
- Pistons: Hypereutectic
- Rings: Moly
Camshaft Specs:
- Camshaft: Hydraulic roller
- Advertised Cam Duration: 251 Intake; 271 Exhaust
- Cam Duration @ .050 in.: 188 Intake; 194 Exhaust
- Cam Lift: .411 in. Intake; .418 in Exhaust
- Intake Centerline: 116 Degrees
- Timing Chain: HD single roller
- Includes fuel pump eccentric to run a mechanical fuel pump
Cylinder Head Information:
- Cylinder Heads: OE Magnum cast iron
- Combustion Chamber: 65 cc
- Valve Size: 1.780 in. Intake / 1.500 in. Exhaust
- Rocker Arms: Steel 1.6 pedestal rockers
Oil Pan Information:
- Oil Pan: OE front sump 5 qt.
- Oil Pump: Melling standard volume
Note:
- Valve Covers Required (Not included)
- Magnum timing cover
Engine Break-In Procedure
Use break-in oil or conventional (non-synthetic) 10w30 oil with zinc additive 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. It is best to avoid long periods of idling during this period. Check the engine oil and coolant levels daily.
Engines with flat tappet hydraulic cams only - Run the engine between 2,000 and 2,500 RPM's, with no-load on the engine for the first 30 minutes. Let the engine cool down completely and repeat the process 2-3 more times. Do not idle the engine for an extended period at this time, this is critical for breaking in the camshaft.
At 500 Miles change the engine oil and filter using conventional (non-synthetic) oil with a zinc additive. Check fuel and ignition settings, adjust valves (where applicable). Drive the next 500 miles normally, without high RPM's (below 5000 RPM), hard use, or extended periods of high loading or long periods of idling.
Change the oil and oil filter again at 1,000 miles. Continue using conventional (non-synthetic) oils and zinc additive, until about 4,000 miles. At that point, you may run a quality 10w30 synthetic oil if you choose. Using an oil with zinc or a zinc additive for the life of your engine is recommended.
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:
Will the 360 magnum 3601 run using the existing factory stock EFI system for 1998 dodge durango
Need to replace my 360 Magnum in 1998 Dodge Durango. Will the 360 magnum 3601 replacement engine fit correctly in my 1998 Dodge Durango and run using Dodge Duangi’s factory computer controlled fuel injection
Will this motor fit a 1992 a ram W350 with a factory 360 LA motor? And does this motor require a TBI setup or a Carb?
Will it replace a 1990 Jeep Wagoneer 360?
What valve springs does this come with
I have a 1998 ram 1500 will this bolt up no issue ?
Will this work as a replacement block for a 2002 1500 with a 5.9 currently
I have a 1991 dodge w250 with a 360 LA motor, would this fit?
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.