Jeep > Categories > EnAssem 360 Magnum Crate Engine > P4510851
 360 Magnum Crate Engine - 390 HP
 

For those who want more horsepower, Mopar offers an even hotter Magnum 360, now standard with new Magnum R/T cylinder heads. Mopar testing produced 390 horsepower at 5,300 rpm, with peak torque output of 420 ft.-lbs. at 4,400 rpm. Specifications: • thermocycled block is bored to +0.020" oversize • new Magnum R/T big valve cylinder heads • Mopar cast aluminum valve covers • high-strength stainless steel valves - 2.02" intake, 1.62" exhaust • heavy-duty valve springs • hydraulic roller camshaft, 288°/292° advertised duration (230°/234° duration @ .050") 0.501"/0.513" lift • pistons - 9.0:1 CR • single plane, M1® 4-bbl aluminum intake manifold (includes bosses for MPI conversion; taller than stock - check hood clearance) • double roller timing chain and sprockets • center sump oil pan similar to Commando engine (fits passenger cars; pan swap required for truck use) • Mopar Performance electronic ignition kit with distributor • heavy-duty engine stand and engine crate • high volume oil pump • flex plate P4876706 and a symmetrical, neutrally balanced torque converter or flywheel P5249842 are recommended (not included)


 
 

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 Notes: Not for use with A/C or for factory MPI replacement. Does not include accessory brackets. Not legal for sale on pollution-controlled vehicles or vehicles registered for highway use. Mopar recommends the use of a 750 cfm Holley carburetor P4349228 and 1-7/8" exhaust headers (not available through Mopar).
 

 


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