Request a Custom Boss Hog Torque Converter

Boss Hog Custom Converter Program

Built Around Your Combination. Not Someone Else’s.

Your engine, transmission, vehicle weight, gearing, tire size and intended use all affect how a torque converter should perform. Give our team the details of your build and we’ll help determine the Boss Hog converter and stall characteristics that best match your combination.

Street. Strip. Towing. Racing. Custom Builds.

Why Build a Custom Boss Hog?

Converter matched to your vehicle and intended use
Technical guidance from experienced converter specialists
Street, street/strip, racing and towing applications
Naturally aspirated, supercharged, turbocharged and nitrous combinations
Built in Muscle Shoals, Alabama
Over 50 years of torque converter experience

Tell Us About Your Build

The more we know, the better we can match your converter. Complete the information below with as much detail as you can. Don’t worry if you don’t know every specification—our team can help fill in the blanks.

Contact Information

Name *

Phone Number *

Email *

City / State *

Your Combination

Not sure about a specification? Give us what you know. Our team can help with the rest.

Vehicle Year / Make / Model *

Weight of the Vehicle *

Transmission *

Big Block or Small Block *

Approx. horsepower *

Cubic Inch or Liter. *

Carbureted or Fuel Injected Size *

Spacer Plate or Cold Air intake *

What Kind of Intake is it *

Dual Plane or Single Plane *

Cast or Aluminum Heads *

Valve Size Intake *

Valve Size Exhaust *

CC Chamber Rating for Heads *

Compression Ratio *

Headers Size at the Head / Inlet *

Are you running Open Headers *

What Kind of Exhaust – True Dual / H-Pipe / X-Pipe *

Exhaust Pipe Diameter inches *

What is the Gross Valve Lift of your Cam – Intake *

What is the Gross Valve Lift of your Cam – Exhaust *

What is the Duration at 0.050 – Intake *

What is the Duration at 0.050 – Exhaust *

What is the Lobe Separation (LS) *

What is the Center Line (CL) *

What is the Advertised RPM Range of the Cam *

What is the Rear Gear Ratio *

What is the Rear Tire Height in inches (based on actual tire size) *

Do you have Turbo / Supercharger - Lbs of Boost *

Do you have a Tans Break *

Do you have Power adders *

What is the Intended use *

What is your target Stall Speed

Current converter / diameter (if any) *

If you’re unsure what stall speed you need, leave it blank. That’s what our recommendation is for.

Tell Us About Your Build

What are you trying to accomplish? *

No obligation. No guessing. Just a recommendation based on your combination.

Not Sure What Stall Speed You Need?

That’s exactly why we’re asking about your combination.

Choosing a torque converter isn’t simply about picking a stall-speed number. Two vehicles with the same engine and transmission can require very different converters depending on vehicle weight, camshaft, torque output, rear gearing, tire diameter and how they’re driven.

Tell us about the vehicle. Tell us what you’ve done to it. Most importantly, tell us what you want it to do.

We’ll help you figure out the converter.

★★★★★
After providing the details of his modified C3 Corvette combination, a Boss Hog customer received a stall-speed recommendation different from what he originally planned—and later reported that the recommendation was right on target.
Boss Hog Customer — CorvetteForum

You don’t need to know which converter you need. Tell us about your vehicle and what you want it to do—we’ll help with the rest.

Use the Stall Speed Calculator