fits model: 750, 350, Magnum.

( Brand: Callies Performance ), ( Manufacturer Part Number: SKJ19A-XL ), ( Part Type: Crankshaft Block Pin ), ( Country/region Of Manufacture: United States )
The Crankshaft Block 3.750 350 1.888 Callies GM XL Pin Magnum is a high-performance component designed for serious engine builders and performance enthusiasts. This crankshaft block is specifically engineered for Chevrolet GM engines, and its 3.750-inch stroke provides a powerful and responsive performance.
The Crankshaft Block 3.750 350 1.888 Callies GM XL Pin Magnum is made from premium-grade forged aluminum, ensuring exceptional strength, durability, and lightweight performance. The block features Callies' patented XL Pin design, which provides increased pin retention and durability, reducing the risk of pin breakage even under the most extreme racing conditions.
The 1.888-inch rod journal bore of this crankshaft block is designed to accommodate high-performance connecting rods, providing improved strength and rigidity for increased power and torque. The block also features Magnum-style main caps, which provide increased surface area for improved bearing support and reduced deflection under load.
The Crankshaft Block 3.750 350 1.888 Callies GM XL Pin Magnum is precision-machined and finished to ensure a perfect fit and seamless installation. The block features a polished surface finish, which not only looks great but also reduces friction and improves engine efficiency.
In conclusion, the Crankshaft Block 3.750 350 1.888 Callies GM XL Pin Magnum is a high-performance component that is designed to provide exceptional strength, durability, and power. Its patented XL Pin design, Magnum-style main caps, and precision machining make it an ideal choice for serious engine builders and performance enthusiasts looking to build a high-performance Chevrolet GM engine.
Pros of purchasing a crankshaft block 3.750 350 1.888 Callies GM XL pin magnum:1. High-quality material: The block is made of high-grade cast iron, ensuring durability and strength.
2. Improved performance: The Callies pin magnum design increases crankshaft rigidity, leading to improved engine performance and reliability.
3. Versatility: This block is compatible with various engine configurations, making it a versatile option for custom builds.
4. Reputable manufacturer: Callies is a well-known and trusted name in the performance aftermarket, ensuring you're getting a reliable product.
Cons of purchasing a crankshaft block 3.750 350 1.888 Callies GM XL pin magnum:1. Cost: The block is more expensive than stock options, which may be a limiting factor for some buyers.
2. Requires specialized tools and knowledge for installation: Installing this block may require specialized tools and knowledge, potentially adding to the overall cost and complexity of the project.
3. Limited availability: As a performance part, this block may not be as widely available as stock options, potentially leading to longer wait times or higher prices.
Conclusion:The crankshaft block 3.750 350 1.888 Callies GM XL pin magnum is a high-quality, performance-focused option that can significantly improve your engine's performance and reliability. However, its cost, installation complexity, and limited availability should be considerations before making a purchase. If you're comfortable with the additional investment and have the necessary expertise, this block can be an excellent addition to your build. If not, a stock block may be a more cost-effective and accessible option.
Recommendation:If you're looking for improved engine performance and reliability and are comfortable with the additional investment and installation requirements, the crankshaft block 3.750 350 1.888 Callies GM XL pin magnum is a recommended option. If you're looking for a more budget-friendly or easier-to-install solution, you may want to consider a stock block.
The Callies Magnum xl profile is effective at minimizing vintage within the crankcase atmosphere. Each main and rod journal is drilled for weight reduction and throttle response improvement. Oil control is improved by not relying on counterweight undercutting to eliminate weight.
Material is carefully removed from non stressed areas of each shaft to eliminate parasitic weight. 010 regrind. Callies SKJ19A xl Callies sbc Magnum xl crankshaft Stroke 3.
850main pin gm small block Callies Performance parts P/N SKJ19A xl shipping applies to the continental USA only lower 48 states.
888rod this heat treatment method produces a deep case that enhances strength while creating an extremely hard load bearing wear surface. 448 main Callies has once again established a new standard for lightweight crankshafts. Magnum xl lightening profiles result in crankshafts having extremely high strength to weight ratios pin gm small block 2.