ATK High Performance Chrysler 360 Magnum 320 HP Stage 2 Long Block Crate Engines HP73M

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Part Number: HPE-HP73M

$4,329.00

ATK High Performance Chrysler 360 Magnum 320 HP Stage 2 Long Block Crate Engines

Crate Engine, Mopar 360 Small Block Stage 2, 320 HP, Long Block, External Engine Balance, Magnum Heads, Each
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ATK High Performance Chrysler 360 Magnum 320 HP Stage 2 Long Block Crate Engines HP73M

ATK High Performance Chrysler 360 Magnum 320 HP Stage 2 Long Block Crate Engines HP73M

HPE-HP73M

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Part Number: HPE-HP73M

Estimated Ship Date: Nov 20, 2026

$4,329.00

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Estimated Ship Date: Nov 20, 2026 Would you rather pick it up?

Overview

Brand:
ATK High Performance Engines
Manufacturer's Part Number:
HP73M
Part Type:
Crate Engines
Product Line:
ATK High Performance Chrysler 360 Magnum 320 HP Stage 2 Long Block Crate Engines
Summit Racing Part Number:
HPE-HP73M
UPC:
00653517546990
Crate Engine Family:
Mopar Small Block Magnum
Actual Engine Displacement:
5.9L/360
Crate Engine Cylinder Head Material:
Cast iron
Engine Block Material:
Cast iron
Advertised Compression Ratio:
9.0:1
Assembled:
Yes
Engine Balance:
External
Cam Style:
Hydraulic roller, OE roller
Rear Main Seal Style:
1-piece
Intake Manifold Included:
Yes
Intake Manifold Style:
Carbureted
Cylinder Heads Included:
Yes
Carburetor Included:
No
Throttle Body Included:
No
Distributor Included:
Yes
Oil Pan Included:
Yes
Valve Covers Included:
Yes
Timing Cover Included:
Yes
Water Pump Included:
Yes
Harmonic Balancer Included:
Yes
Flexplate Included:
Yes
Flywheel Included:
No
Air Cleaner Included:
No
Spark Plugs Included:
No
Spark Plug Wires Included:
No
Computer Included:
No
Wiring Harness Included:
No
Supercharger Included:
No
Remanufactured:
Yes
Quantity:
Sold individually.

ATK High Performance Chrysler 360 Magnum 320 HP Stage 2 Long Block Crate Engines

ATK High Performance Chrysler 360 Magnum 320 hp Stage 2 long block crate engines are perfect for a street cruiser offering great street ability, stock idle, and good power. ATK Stage 2 or mid-dressed engines are designed for those that may have their own component parts already, and who also are interested in completing the finishing touches of the build themselves.

Typically ATK Chrysler 360 Magnum 320 hp mid-dressed engines consist of:

* Seasoned OE Magnum block
* OE cast crankshaft
* OE steel connecting rods
* Hypereutectic pistons
* Chromoly piston rings
* Hydraulic roller camshaft
* Magnum cylinder heads
* Steel rocker arms
* Timing set and cover
* Oil pan, oil pump and pick-up tube
* Valve covers
* Intake manifold
* Distributor
* Water pump
* Front damper
* Flexplate

Applications

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Instructions & Calculators

CFM Calculator

Instruction Sheets for Part Number HPE-HP73M

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Some parts are not legal for use in California or other states with similar laws / regulations

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This is a custom order part. You can order this part by Contacting Us.

California Warning

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This product can expose you to chemicals including chromium (hexavalent compounds), which are known to the State of California to cause cancer and birth defects or other reproductive harm.

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