Drivetrain Automatic Transmissions and Components

Sun Coast Converters

Suncoast Converters 8 High Performance Race Converter - Small Block COA-20507

$2,120.78

SKU: S02K COA-20507

In Stock
In Stock
Ships by Jun 10
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Coan Racing COA-20507 8″ High‑Performance Race Converter (Small Block) is a purpose-built torque converter engineered for TH350 and TH400 transmissions in high-stress small block applications. With its compact 8-inch diameter, this converter delivers aggressive stall characteristics tailored to high-rpm launches and low-inertia performance. Constructed to Coan’s rigorous "High Performance" standard, the COA-20507 features reinforced components that maintain pump clearances under intense operating pressure. Ideal for racers seeking maximum throttle response, minimized rotating mass, and dependable engagement, the COA-20507 stands out as a compact, high-performance solution engineered for the rigors of serious competition.

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-20507

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