Interested in Dyno Tuning for your Ford or GM vehicle?
Contact Us



The Circle D Pro Series 265mm (10 1/2") billet torque converter for the GM 8L90 transmission. Custom manufactured to your exact stall speed specification.
Fits GM vehicles equipped with the 8L90 transmission with 3 disk lock-up and stock (6x11.50) bolt pattern. WILL NOT FIT 2019+ L84 APPLICATIONS. Choose your stall speed (2600-3400 RPM range or Ask CDS). Custom manufactured item; lead time approximately 3-4 weeks.
Thanks for subscribing!
This email has been registered!