Suncoast Converters Race Prepared Case Machined For Ultra Bell COA-12837A

The Coan Racing COA‑12837A Race‑Prepared Case Machined for Ultra‑Bell is a specialized transmission case designed for GM Powerglide builds that utilize Coan’s “Ultra Bell” bellhousing system. This case is fully race-prepped, professionally machined and reinforced to provide exceptional precision and durability. Its most notable feature is the dedicated machining for Ultra Bell integration, ensuring perfect alignment without additional adapters or modification. Ideal for serious performance applications, the COA‑12837A delivers a ready-to-run foundation built to support high-horsepower, high-stress Powerglide assemblies with confidence and ease.