I found this from an archive section of another forum, looks like it was copied from some other source like a web, or catalogue listing. I can't say how accurate it is, but may be useful.
Part # P4510852
360 MAGNUM CRATE ENGINE
320 HORSEPOWER
385 Ft. Lbs. Torque
Why take the time and expense to rebuild your old small block when you can bolt in a 320 horsepower Magnum engine for about the same cost? Dyno testing produced 320 Horsepower at 4750 rpm. Torque output is over 385 ft.-lbs. at 4000 rpm. Engine now comes standard with new Magnum R/T Big Valve Cylinder Heads. Mopar Performance recommends the use of a 750 cfm Holley Carburetor (P4349228- Available through BPE) and 1 5/8" Exhaust Headers.
Specifications:
* Built with all - new components
* New Magnum R/T Big Valve Cylinder Heads
* Distinctive Mopar Performance Cast Aluminum Valve Covers
* High-Strength Stainless Steel Valves - 2.02" Intake and 1.62" Exhaust
* Heavy-Duty Valve Springs
* Hydraulic Roller Camshaft - 250°/264° duration, 0.385"/0.401" Lift
* Dual-Plane, M1 4-bbl Aluminum Intake Manifold
* High Volume Oil Pump
* Mopar Performance Electronic Ignition Kit with Distributor
* Does not include accessory brackets (Sold Only Here At BPE)
* Not Recommended For Factory MPI Installations
