Brian Crower Crankshaft - Honda/Acura K20 99mm Stroke Custom 4340 Billet w/B18A Rod Journals

This Brian Crower crankshaft is a custom billet piece designed for Honda/Acura K20 engines. You get the crankshaft itself, ready for your build. It features a 99mm stroke, which is a custom dimension that increases displacement over the stock K20 crankshaft. The journals are specifically machined to accept B18A connecting rods, offering a unique option for engine builders looking to combine components from different Honda engine families.

Constructed from 4340 billet steel, this crankshaft is built for strength and durability. Billet steel is a solid choice for high-performance applications because it starts as a solid block of material that is then forged and machined, resulting in a uniform grain structure that is much stronger than cast or even forged crankshafts made from multiple pieces. The 99mm stroke is a notable increase, and when paired with appropriate connecting rods and pistons, it will significantly increase the engine's displacement. This is a critical component for anyone looking to build a high-horsepower K20 engine that can handle demanding use.

When installing a custom crankshaft like this, it's essential to ensure all related components are compatible and within specification. This includes the engine block, connecting rods, pistons, bearings, and the oiling system. Proper balancing of the rotating assembly is also crucial for smooth operation and longevity, especially with a custom stroke length. Always refer to the manufacturer's installation instructions for detailed guidance on assembly and critical measurements.