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Duramax Conversions by HLine

SEMA 2018 Battle of the Builders Oct 29 - Nov 2, 2018 Las Vegas, NV

SEMA 2018 Battle Of The Builders

HLine Conversions sends a heartfelt "thank you" to the following sponsors for their support with this awesome build:  PPE Inc, GPLine, Griffin Thermal Products, Scorpion Coatings, Speedhut, Wheel Pros, Rigid Industries, JBL Audio, and CCT.


*Special Recognition*

We would like to recognize Nathan Jeffries and Kyle Helm for their craftmanship and fabrication skills with this build.  They are truly two talented individuals.  We also appreciate Ken Wolkens at StandAlone Harness for his assistance. 

HLine Conversions in The news........

News Reporting Outlets

HLine Conversions is your one stop center for all Humvee upgrades. We specialize in Duramax conversions and custom interior and exterior fabrication. If you can dream it, we can design and build it!


Car mechanic Johnathan Goodwin converts some of America’s biggest gas-guzzlers into low-emission hybrids — while doubling the horsepower. If an engine tinkerer in Wichita, Kan., can turn out “mean and green” vehicles, why can’t Detroit?

THE WALL STREET JOURNAL

An engineer's skill at turning gas guzzlers into efficient cars has led rock legends and big businesses to seek out his expertise.

THE GUARDIAN

Goodwin is making a name for himself -- and his company, HLine Conversions -- by turning gas-guzzling behemoths like Hummers, Cadillac Escalades, Jeeps and other big American cars into clean-power machines.

CNN

Johnathan Goodwin can get 100 mpg out of a Lincoln Continental, cut emissions by 80%, and double the horsepower. Does the car business have the guts to follow him?

FAST COMPANY

TheGuardian: Humming a greener tune for vehicle

Fast Company: Motorhead Messiah

AutoBlog: Neil Young's 1959 Lincoln runs on biodiesel and can be plugged-in

The Wichita Eagle: Mechanic to the stars is back with new company

The Wall Street Journal: Can Cars Be Made to Go Fast and Burn Clean?

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