New Product

ATK TQHPLS1-25TC LS 4L65E Converter, 2500-2800 Stall, Multi-Disc

New Product

#35020453

ATK TQHPLS1-25TC LS 4L65E Converter, 2500-2800 Stall, Multi-Disc

2500-2800 RPM stall range for GM 4L65E transmissions
10 in. diameter, 30-spline turbine, 1.703" crank pilot
Lockup design with anti-balloon plate

$1,099.00

/each

Factory Shipped

Quantity

Need Help? Call to Order

Add to a list

Select a vehicle to verify Fitment

Select Vehicle

Product Summary

4L65E, 30 Input Spline Quantity, 10" Diameter, Balanced

2500-2800 RPM stall range for GM 4L65E transmissions
10 in. diameter, 30-spline turbine, 1.703" crank pilot
Lockup design with anti-balloon plate
Billet Cover & Multi-Plate Piston, Furnace Brazed & Balanced
New bearings and hubs, computer balanced, pressure tested for leaks

See more details

Key Specs

MFG. Part #	TQHPLS1-25TC
Input Spline Quantity	30
Diameter	10"
Lockup Compatible	Yes
Stall Speed (RPM)	2500-2800

See more specs

Need To Know

Made to Order

This custom item will ship when completed

Need help?

855.313.9176

View the Help Center

Quick and Easy Returns

Return Policy

Installation Details

Installation Tips

Choosing the right torque converter starts with stall speed, the RPM the engine reaches before the converter stops slipping and starts moving the vehicle. The target is a stall speed within about 700 RPM of the engine's peak torque, so it launches at the front of its power band. Too low and the engine bogs off the line; too high and the converter slips, builds heat, and raises cruise RPM. Higher stall is not automatically better, so match the converter to the whole combination: an aggressive cam, numerically higher rear gear, and lighter vehicle favor more stall, while a mild cam, lower gear, heavier vehicle, or taller tire call for less. For towing, prioritize low-end torque multiplication over stall. Published stall ratings come from a standard test engine, so real-world stall runs higher behind engines making more torque and lower behind engines making less. Smaller diameters generally stall higher and react faster, while larger diameters offer better street manners and cruise. Before installing, confirm the input shaft spline count, bolt pattern, pilot hub diameter, mounting depth, and whether your transmission supports lock-up. Prime the converter with fresh ATF and make sure it is fully seated on all three engagements before bolting up. Add an external transmission cooler for higher-stall, towing, track, or hot-weather use.

WARNING: This product can expose you to chemicals including chromium (hexavalent compounds), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Have a Question?

Call one of our U.S.-based customer service professionals.

Tech Support - Opens at NaNpm (UTC)

ATK Engines TQHPLS1-25TC Details

This is our toughest street/strip converter. Along with all new components these units also feature anti ballooning plate(s) & furnace brazed pumps & turbines. These converters are designed to handle nitrous, transbrake or blower applications. Rated to 800HP, it is the perfect converter to drive to the track & compete.

Features:

Fits GM 4L65E automatic transmissions
10 in. diameter converter
30-spline turbine (input shaft)
2500-2800 RPM stall range
1.703" crankshaft pilot
Mounting style: Pads
Lockup converter
Anti-balloon plate
Billet Cover & Multi-Plate Piston, Furnace Brazed & Balanced

We have honed our reman torque converter operation to optimize a steady outflow of a variety of products by using & adopting standard operating procedures to supply automotive, high-performance, heavy-duty and industrial converters.

Guides & Documents

Warranty (ATK Engines)

Technical Information (ATK Engines)

CA Prop 65

ATK Engines TQHPLS1-25TC Specifications

KEY SPECS
MFG. Part #	TQHPLS1-25TC
Brand	ATK Engines
Input Spline Quantity	30
Diameter	10"
Lockup Compatible	Yes
Stall Speed (RPM)	2500-2800

GENERAL
Anti-Ballooning Plate	Yes
Balanced	Yes
Crank Pilot Diameter	1.703"
Furnace-Brazed	Yes
Use with Power Adder	Yes
Use with Trans Brake	Yes
GTIN Code	00653517745973
Mounting Hardware Type	Pads
Torque Converter Use	Performance

Ratings & Reviews

Be the first to write a review.

Questions & Answers

Be the first to ask a question.