ATK Core Return Process
JEGS and ATK appreciate your business and want to ensure that your core return is as smooth as possible.
- Core return can be any 1971-2003 Small Block Chrysler 360ci engine
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.
- Seasoned OE 2 Magnum roller block 1993-2001
- Bore/Stroke: 4.060 in, x 3.580 in.
- Displacement: 360 ci
- Crankshaft: OE cast
- Balance: External front, internal rear
- Rods: OE 6.123 in.
- Compression Ratio: 9.1:1
- Pistons: Hypereutectic
- Rings: Moly
- 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
- Valve Covers Required (Not included)
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.
Small Block Mopar Performance
JEGS Chrysler Magnum 360 Crate Engine was reverse engineered to create a product with far greater quality than the OEM product, allowing for any factory original defect to be found and removed. This saves you time and money by keeping your vehicle out of the shop and on the road. Engines are factory checked after assembly to ensure proper operation. This engine features a 24 month/unlimited mileage warranty.
Will this bolt right in to a 2001 5.9 Ram 1500 4x4?
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.
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.
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.