Best Ati Performance Products in 2026

Package Dimensions: 1.46 H x 14.17 L x 13.5 W (inches)

Internally balanced

Package Weight: 5.0 pounds

package height :5.5 "

package length :9.3 "

package width :9.2 "

Package Dimensions: 10 L x 4 H x 10 W (inches)

Package Weight : 11.25 pounds

Country of Origin : United States

Product Type :Auto Part

Package Dimensions :12.4 " L X 12.3 " W X 2.8 " H

Country Of Origin :United States

The package length is 9.7 inches

The package height is 5.8 inches

The package width is 9.5 inches

ATI Performance Products TRANSBRAKE TH 400

Harmonic Balancer; Super Damper; Internal Balance; Aluminum/Steel; 6.780" OD; Chevy 6.2L; Ten percent underdriven damper with OEM-size air conditioner pulley. Weight is 4.5 lbs.; Each;

Adapts Powerglide, 4L80E, TH400, TH350, 700R4, 4L60, 4L60E (from non LS engine) torque converter snout to LS/LT engine

See our LS/LT Crankshaft and Flexplate guide to determine where to place your crankshaft hub adapter

Made in Wichita, Kansas from USA produced steel

Extended Length Bolts for use with Crankshaft Adapter Plates

M11-1.5 thread

Package Includes 6 bolts

For GM cars with automatic transmission

Includes six 7/16-20 X 11/16 - grade 8 bolts

Bolts have a black oxide finish

Balanced to factory specs

Fit and function like the original parts.Restores normal operation

Chelhead LS flywheel locking tool Compatible with Chevy/GM, LS1, LS2, LS3, LS6, clears all RWD bellhousings-Manual and Automatic (do not work on FWD engines)

Works on all GM 97 -2019 rwd V8 LS and LT baised engines. Cars and trucks. 4.8, 5.3, 5.7, 6.0, 6.2, 7.0 liter( Will not fit Gen 3 coyote 18 and up engines)

TIG welded using 1/4" cold rolled USA Steel, proven design for strength and reliability

LS1 Flexplate Adapter Spacer For GM TH350 TH400 Conversion Swap LS2 LS3 LS6 5.3 6.0 LS7

When Installing a TH350 or TH400 behind a LS Engine while Using a Curved Flywheel You'll Need this Adapter Spacer

The Spacer Will Center the Nose of the Converter to the Curved Flexplate

Balanced to factory specs

Balanced to factory specs

Fit type: Vehicle Specific

Balanced to factory specs

ARP Flexplate Bolt Kit Dodge Cummins Diesel P/N 147-2901

Part number: 147-2901

Fit type: Vehicle Specific

Fit Type: Vehicle Specific

Package Dimensions: 35.306 L x 37.592 W x 2.794 H (centimetres)

Package Weight: 6.8 pounds

Chevy/GM chrome steel flywheel/flexplate dust cover.

Fits Chevy/GM Turbo TH-350 and Chevy/GM Turbo TH-400 transmissions.

CFR Performance flywheel/flexplate dust cover.

Package Dimensions: 2.286 H x 14.732 L x 24.384 W (centimeters)

Made in USA

Flywheel Bolt Kit

Fit for LS1 2 3 LSX Engine ( Used on engine stand or in the vehicle. )

Simple two bolt installation - Bolts in place of starter

Featured with high strength and reliability.

2 Times thicker than stock

High quality welds

300% less radial run out compared to other aftermarket flex plates

Forged from steel and heat-treated to Grade 8 specs for maximum strength and durability

Compatible with countless GM V6s and V8s

Comes complete with matching washers

package dimensions: 5.4 h x 10.8 l x 10.4 w (centimeters)

package weight: 1.014 pounds

product type: auto part

Gold iridite plated

.035 inch thicker than stock

SFI-approved

SB Chevy 153-Tooth, 86-Up

Externally Balanced

Single 10-3/4" torque converter bolt pattern

ARP Flexplate Bolt Kit Ford Modular P/N 254-2901

Part number: 254-2901

Fit type: Vehicle Specific

Chevrolet > All Models > 90° V6 & 265-454 V8 > with 2pc. rear seal

Balanced to factory specs

ATP Z-345 Automatic Transmission Flywheel Flex-Plate

Package Dimensions: 36.322 L x 3.048 H x 37.083 W (centimeters)

SFI 29.1 certified

0.035 inch thicker than stock flexplates

Designed and built for racing

Perfect for installing new engine or transmission

Intended for two-piece rear main seal engines ONLY

Small Block Chevy