30221-50BRBD Competition GM TH400 Transmission 1000 Horsepower Rating

Name: 30221-50BRBD Competition GM TH400 Transmission 1000 Horsepower Rating
Brand: JW PERFORMANCE
SKU: 564-30221-50BRBD
Price: 4036.50 USD
Availability: InStock

^$4,036⁵⁰

Truck Freight

Ships on Sep 08, 2026

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1000hp

Competition GM TH400 Transmission

Horsepower Rating: 1000

Reverse Pattern Transbrake Valve Body

Cast Aluminum Deep Pan

34 Element Sprag w/Spiral Lock Retainer

Drag Free

CNC Prepped for Ultra-Bell Bellhousing

No Speedometer Provision

JW Performance 30221-50BRBD Competition GM TH400 Transmission:

1000 Horsepower rated for most applications
Reverse Pattern Transbrake Valvebody
OEM Case, bead blasted, painted black
CNC-Prepped for Ultra-Bell Installation (Ultra-Bell Sold Separately)
Full Roller Bearing (Drag Free) assembly
Performance Clutches and Steels
Upgraded Intermediate Clutch Powerpack
34 Element Intermediate Sprag with Spiral Lock Retaining Ring
Cast Aluminum Deep Pan
Standard 4 in. Tailhousing
No speedometer provision
Vent is tapped for 1/8 in. NPT
Fully Dyno Tested

3-Speed Transmission Work Horse

JW Performance Competition TH400 Transmissions were originally released in 1964 and are an ideal racing automatic transmission for Hot Rods to Pro-Mods. The TH400 is available with the Chevy or BPO bellhousing and also a cut version that is ready for the Ultra-Bell.

Features:

4" Short Tailhousing (others available via special order)
Hand Selected Core Unit
Performance Clutches & Steels
34 Element Sprag
Intermediate Clutch Power Pack
Rear Roller Bearing
Fully Dyno Tested
Speedometer Plugged
Vent Tapped to 1/8" NPT Note: Image shown with OEM Chevrolet Bellhousing and Deep Pan Option.

Part TypeAutomatic Transmission

Product LineJW Performance Competition TH400 Transmissions

BrandJW PERFORMANCE

Package Height21.0

Package Width21.0

Package Length38.0

Weight150.0 PG

Part CategoryPerformance Parts

Transmission Mfr.GM

Transmission Drive TypeRWD

Transmission BellhousingChevrolet

Transmission Mfr. CodeTH400