SG-B323-CS1 — 1st Gear, Countershaft

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SG-B323-CS1 — 1st Gear Countershaft

Description

The SG-B323-CS1 is the countershaft first gear from the Pro Series 3.23:1 set, engineered for hard-launch performance and short-course acceleration while maintaining streetable durability and low NVH. Precision-hobbed helical teeth with edge relief and an integrated, chamfered clutching tooth ring deliver smooth 1–2 engagements and rigid mesh under high load. Ground bore and locating faces ensure OE-fit drop-in installation.

Specification

Tooth Form: Helical

Material: SCM415 / SAE 8620 alloy case-hardening steel (or equivalent)

Heat Treatment: Carburized & quenched

Surface Hardness: HRC 58–62

Manufacturing: CNC turning/milling; precision hobbing; dog-tooth finishing & deburring; bore & faces precision-ground