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. Mopar recommends the use of a 750 cfm Holley carburetor (P4349228) and 1-7/8" exhaust headers.

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 C.R.
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
Does Not Include Accessory Brackets
Not Recommended for Factory MPI Replacement
High Volume Oil Pump
Flex Plate P4876706 and a Symmetrical, Neutrally Balanced Torque
Converter or Flywheel P5249842 Are Recommended (Not Included)