fits model: Ls2, Ls1, Ls7, Ls6.

( Part Type: Crankshaft )
The APO31V-DS Callies Forged LSX/LS2 4.00 LS1 Dragonslayer/LS7/LS6 Crankshaft is a high-performance, forged crankshaft designed specifically for LS-series engines. This crankshaft is constructed using Callies' proprietary forging process, which results in a strong, durable, and lightweight part.
The APO31V-DS crankshaft features a 4.00-inch stroke length, which is ideal for boosted applications or high-power builds. The crankshaft is also equipped with Callies' patented Dragonslayer design, which includes an increased journal diameter and a high-strength, heat-treated main cap. This design provides increased strength and durability, allowing for higher horsepower and torque outputs than standard crankshafts.
The APO31V-DS crankshaft is also compatible with LS1, LS7, and LS6 engines, making it a versatile option for a wide range of builds. The crankshaft is also available in various finishes, including polished, black oxide, and chrome, to suit your engine's aesthetic needs.
In summary, the APO31V-DS Callies Forged LSX/LS2 4.00 LS1 Dragonslayer/LS7/LS6 Crankshaft is a high-performance crankshaft designed for boosted and high-power applications. Its forged construction, Dragonslayer design, and versatility make it a top choice for LS-series engine builds.
Pros of buying APO31V-DS Callies forged LSx crankshaft:1. High strength and durability: Callies forged crankshafts are known for their strength and ability to withstand high horsepower applications. The APO31V-DS is no exception, and it is designed to handle the power of LSx engines, including LS1, LS2, LS3, LS6, and LS7.
2. High-quality materials: Callies crankshafts are made from top-quality materials, such as 4340 chromoly steel, which ensures a long lifespan and resistance to failure.
3. Customizability: The APO31V-DS crankshaft can be customized to meet the specific needs of your engine build, such as stroke length, journal diameter, and bearing type.
4. Improved performance: A forged crankshaft can improve engine performance by reducing rotating mass and increasing stiffness, which can result in improved power output and acceleration.
Cons of buying APO31V-DS Callies forged LSx crankshaft:1. Higher cost: Forged crankshafts, such as the APO31V-DS, are generally more expensive than cast crankshafts. The cost can be a significant factor if you are on a tight budget.
2. Requires specialized tools: Installing a forged crankshaft may require specialized tools, such as a crankshaft puller and alignment jig, which can add to the cost of the project.
3. Limited availability: Callies forged crankshafts may not be available in all locations, and it may take longer to receive the part if it has to be shipped from a distant location.
Conclusion:If you are looking to build a high-performance LSx engine and are willing to invest in a high-quality forged crankshaft, the APO31V-DS Callies forged LSx crankshaft is a great option. Its high strength, customizability, and potential for improved engine performance make it a worthwhile investment for serious engine builders. However, its higher cost and potential requirement for specialized tools should be considered before making a purchase.
Recommendation:Before purchasing the APO31V-DS Callies forged LSx crankshaft, it is recommended to research your engine build requirements and determine if a forged crankshaft is necessary. If a forged crankshaft is required, it is also recommended to research other options and compare prices and features to ensure you are getting the best value for your money. Additionally, it is recommended to consult with a qualified engine builder to ensure the crankshaft is properly installed and aligned to maximize its performance and lifespan.
Dragonslayer LS1 crankshafts are sold with gun drilled mains and Angelita drilled rod journals.
These shafts are machined to the tolerances demanded by today high performance engine builder.
Each callies LS1 features perms tough heat treating for added strength and serviceability. This heat treatment method produces a deep case that enhances strength while creating an extremely hard load bearing wear surface.
Our LS1 crankshafts are machined from premium 4340 forgings.
Roundness and taper are held to less than. Callies NP apo31v ds callies dragonslayer 4.
All dragonslayer are produced with standard Chevy rod journal diameters and width s for ABC, BBC, LS1, and Mopar applications.
Gen ii iv LS1 dragonslayer crankshafts are available in either 4. 100 rod journal, uses 6. Our final polishing procedures produce excellent load carrying surfaces that ensure extended bearing life and trouble free operation.
Each dragonslayer features the callies ultra case nitrite treatment. 625 strokes with regrind.
100 rod journals.
000 forged crankshaft, for ls based Chevy engine, setup for internal balance 4. For American racers.