Drivetrain Automatic Transmissions and Components

Sun Coast Converters

Suncoast Converters 9 Maximum Performance Converter w/ Billet Aluminum Stator Spragless COA-10450S

$2,827.52

SKU: S02K COA-10450S

In Stock
In Stock
Ships by Jun 12
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Coan Racing COA‑10450S 9″ Maximum Performance Torque Converter (Spragless with CNC Machined Billet Aluminum Stator) is a top-tier, drop-in conversion designed for Powerglide transmissions that demand durability and precise performance. This converter boasts a CNC-machined billet aluminum stator that delivers dramatically improved structural strength and precision compared to cast units. Uniquely spragless, it forgoes traditional one-way clutches to produce ultra-consistent torque transfer and repeatable thermal behavior, making it a preferred choice in high-precision racing classes. With a premium stator, upgraded torque-handling components, the COA‑10450S offers race-caliber performance, quick stall response, and enhanced fluid circulation in a ready-to-install, 9" package. Ideal for serious drag or oval-track setups, this converter provides elite-level reliability and race-proven consistency under relentless conditions.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSun Coast Converters
Part NumberS02K COA-10450S

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy