SKU: CALBBS42B-MG
MPN: BBS-42B-MG
The BBC 4340 Forged Magnum Crank - 4.750 Stroke from CALLIES is designed for Big Block Chevrolet engine builders who seek maximum displacement and durability. This forged crankshaft is ideal for serious enthusiasts building street performance engines, competition platforms, or full race applications. Its robust design ensures reliability under high RPM and extreme cylinder pressures.
Manufactured from premium 4340 forged steel, this crankshaft offers superior fatigue resistance and toughness compared to cast alternatives. The 4.750-inch stroke provides substantial displacement when paired with compatible bore sizes, making it suitable for builders targeting high power outputs. The Magnum designation indicates CALLIES' proprietary forging and heat-treat process, optimizing grain structure for enhanced strength.
This BBC 4340 Forged Magnum Crank is perfect for builders assembling Big Block Chevrolet platforms with stroke requirements between 4.500 and 4.750 inches, commonly found in 427, 454, and 502 cubic inch engines. Its design supports various applications, including street performance, racing, marine, and industrial uses. This crankshaft is a reliable choice for those looking to maximize engine performance without compromising structural integrity.
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