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How much does a Viper crankshaft weight?

The Dodge Viper's V10 crankshaft typically weighs roughly 90–110 pounds (about 41–50 kilograms). Exact published weights aren’t standardized across generations, and the value can vary depending on manufacturing method (forged steel versus other alloys) and the specific crank design used in different model years.


Context: what the crankshaft does in the Viper V10


The crankshaft is the core rotating component that converts the pistons’ linear motion into rotational energy to drive the drivetrain. In the Viper’s V10 configuration, the crank has five throws to accommodate ten cylinders, and its mass is chosen to balance strength, durability, and the engine’s dynamic performance at high RPMs and torque.


What influences weight and why it matters


Weight depends on material choice (forged steel vs cast), the number of counterweights, machining practices, and whether the unit comes from OEM production or aftermarket remanufacturing. Heavier cranks add rotational inertia, which can affect throttle response and engine acceleration, but they are often chosen for greater strength to handle high horsepower and torque reliably in performance applications.


Estimated ranges and practical notes


Because official, standardized weights for the Viper V10 crankshaft are not widely published, most credible estimates place it in the 90–110 pounds (41–50 kilograms) range. Variations of a few pounds may occur between early Gen I Vipers and later models, as well as between OEM units and aftermarket or rebuilt components.


Bottom line for owners and mechanics


For a precise figure on a specific crankshaft you’re inspecting or purchasing, consult the exact OEM part catalog or service manual for your model year, or check with the aftermarket supplier. They will list the exact weight as part of the product specifications.


Summary


In summary, a Dodge Viper V10 crankshaft is typically around 90–110 pounds, with the exact weight varying by generation, material, and production method. Official, uniform weights are not universally published, so practitioners rely on range estimates and manufacturer specifications for the exact part in question.

What is the average weight of a crankshaft?


Average crankshaft weight is 47-49 pounds. Eagle Lightweight crankshafts are rated to support up to 850 horsepower.



How much does a 350 crankshaft weigh?


Additional information

Weight50 lbs
TypeSmall Block
MaterialForged 4340 Steel
Rear Main Seal2-Piece, 1-Piece
BalanceInternal



How much does a 8.4 L Viper engine weight?


The engine weighs 323 kg (712 lb) and is rated at 400 hp (406 PS; 298 kW) at 4,600 rpm and 630 N⋅m (465 lb⋅ft) of torque at 3,600 rpm.



What material is the crankshaft of a Dodge Viper?


4340 steel
Compstar billet crankshafts for the Viper are meant for hardcore race applications. These shafts are machined from 4340 steel for durability and nitride surface hardened for excellent bearing life.


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Kevin Bennett

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Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.