Drivetrain› Automatic Transmissions and Components

Circle D Specialties

GM 252mm Pro Series 4L60 LS Torque Converter

$2,699.00

SKU: 01-11H-34-MD2

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Circle D Specialties GM 252mm Pro Series 4L60 LS Torque Converter is designed for high horsepower street and track applications. It is suitable for engines producing 800+ horsepower and is ideal for use with turbo, blower, or nitrous-equipped vehicles.

Key features include a billet front cover, anti-balloon plates on the pump and turbine, a CNC machined steel stator, a mechanical diode one-way clutch, and furnace brazed and hand TIG welded fins. This converter is custom manufactured with a lead time of 4-6 weeks.
Show original supplier description
The Circle D Specialties GM 252mm Pro Series 4L60 LS Torque Converter represents their most durable and adjustable option, engineered for high horsepower street and track performance vehicles. This converter is specifically designed to handle over 800 horsepower, making it a perfect match for applications featuring large-power turbochargers, superchargers, or nitrous oxide systems. Constructed with robust materials, this torque converter boasts a billet front cover for enhanced durability. It incorporates anti-balloon plates on both the pump and turbine to maintain structural integrity under extreme conditions. The stator is CNC machined from steel to allow for maximum adjustability, while the mechanical diode one-way clutch ensures efficient power transfer. All fins are furnace brazed and hand TIG welded for superior strength and longevity. This product is custom manufactured, with a typical production lead time of 4-6 weeks. Buyers can select from various stall speed options (e.g., 3200-3400 RPM, 5800-6000 RPM), lock-up options (Single Disk Lock Up, 3 Disk Lock Up, Non-Lockup), and sprag options (Mechanical Diode, Spragless for Non-Lockup only) to tailor the converter to specific performance needs.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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

BrandCircle D Specialties
Part Number01-11H-34-MD2
CategoryDrivetrain

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

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

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy