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Charts & Guides for Part Number HME-DMWEMAG
ATK Marine Rebuilt Long Block Engines
Engine Long Block, 8.1 Liter, 496 Cubic Inch, Marine, Cast Iron, Hydraulic Roller, Camshaft. Scat Rotating Kit, Chevy, Each
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Estimated Ship Date: Nov 9, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
DMWEMAG
Part Type:
Product Line:
Summit Racing Part Number:
HME-DMWEMAG
UPC:
00653517574726
Crate Engine Family:
Chevy Big Block
Actual Engine Displacement:
8.1L/496
Crate Engine Cylinder Head Material:
Cast iron
Engine Block Material:
Cast iron
Assembled:
Yes
Engine Balance:
Internal
Cam Style:
Hydraulic roller, OE roller
Rear Main Seal Style:
1-piece
Intake Manifold Included:
No
Cylinder Heads Included:
Yes
Carburetor Included:
No
Throttle Body Included:
No
Distributor Included:
No
Oil Pan Included:
No
Valve Covers Included:
No
Timing Cover Included:
No
Water Pump Included:
No
Harmonic Balancer Included:
No
Flexplate Included:
No
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.
Notes:
Magnum engine model.
ATK Marine Rebuilt Long Block Engines
ATK Marine Engines offers premium-quality rebuilt long block engines specifically for boating applications. These engines are designed to deliver maximum performance and long-term durability for your boat. Order the model recommended for your marine application.
ATK Marine rebuilt engines include:
* Special marine pistons and rings
* Special marine camshaft
* Marine gaskets
* New intake and exhaust valves
* New main, rod, and cam bearings
* New valve lifters, rocker nuts, and swivels
* Heavy-duty double roller timing chains
* Cam sprocket
* Crank gear
* Freeze plugs
Applications
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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