Drivetrain Automatic Transmissions and Components

B&M

Street/Strip Automatic Transmission for GM TH350

$2,921.52

SKU: 113001

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Overview

The B&M Street/Strip Automatic Transmission is designed for GM TH350 transmissions in 2WD applications. This transmission is built to handle up to 450 horsepower and 400 ft-lbs of torque. It features a 2.52:1 first gear ratio and an aluminum case.
Show original supplier description
The B&M Street/Strip Automatic Transmission (PN 113001) is a ready-to-run unit for high-performance street and strip use, specifically designed for GM TH350 transmissions in 2WD vehicles. This transmission is engineered to support vehicles with up to 450 horsepower and 400 ft-lbs of torque, making it suitable for demanding applications. Constructed with an aluminum case, this transmission features a 2.52:1 first gear ratio for strong initial acceleration. It includes a slip-on yoke style and has 30 input spline quantity. The transmission is designed for Chevrolet applications and is a direct fit for TH350 transmissions. This particular unit is noted as discontinued and currently unavailable through some retailers. Some sources indicate it was designed for Chevrolet small block and big block engines from 1965-1991.

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

BrandB&M
Part Number113001
CategoryDrivetrain

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

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