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What Is a Throttle Response Control Module?
If you drive a new truck, especially a diesel-powered rig, you’ve definitely experienced it: the very short lapse of time between the moment you step down on the throttle pedal and when the truck actually progresses or moves. This brief void is commonly referred to as throttle lag, and it’s one of the most annoying
K.J. JonesApr 9, 2021

Latest Engine Articles

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What Is Compression Ignition?
Let’s discuss something that is well known by diesel mechanics and hard-core enthusiasts but may not be fully understood by new diesel owners or people who may have heard the term “compression ignition” when engines are being discussed but ultimately are clueless about the descriptor’s true definition. What is compression ignition? Compression ignition basically is
K.J. JonesMar 23, 2021
Diesel Power
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10 Best Engine Builds on TruckTrend.com
Gasoline engines, or diesel, electric, and other alternatively fueled powerplants: In the big picture, it doesn’t matter what type of engine a truck uses. The facts are, a motor of some sort is necessary to propel the vehicle, and there is an infinite number of platforms and combinations that can be used for making it
K.J. JonesMar 10, 2021
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Review: The Truth Behind Sy-Klone’s Snorkel Pre-Filter
For those of you who have a snorkel on your 4×4 and have braved all the snorkel jokes out there about how deep the gutter to your local mall is, we know you are the enlightened ones. Of course, you know that snorkels have benefit beyond deep water crossings. You know that snorkels, such as
Sean P. HolmanMar 8, 2021
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Motorhome Dodge 440 Basic Rebuild Gets Great Horsepower and Torque
We all know the 440 big-block is the largest-displacement V-8 engine built by Chrysler, and when it comes to a combination of torque, power, and drivability, the 440 ranks as one of the best engines ever built. Instead of utilizing a high compression ratio or aggressive cam grind for its muscle, the 440 relies on
Dave YoungJan 15, 2021
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Factory LS Camshaft Comparison: LM7 vs. LS1 vs. LS2 vs. LQ9 vs. L33 vs. LS7 vs. LS9 vs. LSA
Here is a common question among LS engine enthusiasts: My buddy, Joe, just bought a new cam for his 6.0L and wants to get rid of his factory LQ9 cam. Is that a good cam for the 5.3L in my truck, for my 240SX drift car, or the LS engine I am swapping into my
Richard HoldenerJan 13, 2021
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How to Make Power with a Chevy TBI V-8
Here’s a question from a reader about adding power to a GM TBI engine. The principle is pretty much the same with any speed-density fuel-injection system, so check out engine guru Jeff Smith’s answer to a question posed by Nathan Seabaugh of Northern Illinois. Question: I am building an engine for my ’89 Chevy K2500.
Jeff SmithJan 8, 2021
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Get 500 Horsepower from a Junkyard Ford Explorer 302
Some ideas never go out of style. It’s a classic move we’ve pulled off many times. Yank a motor out of the junkyard, clean it up, add a camshaft, intake, and a carburetor, and see how much power we can squeeze out of it. This time around, we chose a shining example of this junkyard
Jeff SmithJan 6, 2021
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Rebuild vs. New: Ford 360 FE Truck Engine
As a high-mileage, daily driven truck, my FE-powered 1968 F-100 has seen its fair share of bumps and bruises externally, but nothing prepared me for what was going to happen to the tough-as-nails, 360 big-block on a hot summer day. On a drive out to pick up a basket case motorcycle I purchased via the
Jeff G HoltDec 23, 2020
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Get 500 lb-ft of Torque from a Small-Block Chevy in Six Easy Steps
The HT383 has been available for a number of years now, and it’s an excellent repower option for you GM (on non-GM) truck or 4×4 thanks to its rated 325 hp at 4,500 rpm and 415 lb-ft of torque at 3,500. It’s true that GM’s aluminum-headed Fast Burn 350 makes 385 hp and 385 lb-ft
Jim BrownDec 21, 2020
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How to Winterize a Diesel Engine
Although there are a few states that have experienced cold temperatures and, in a few instances, snow, since October, we’re now in the heart of winter, the season that officially runs from December to March but often lingers until as late as May. In traditionally cold areas, the air is chilly for weeks at a
K.J. JonesDec 18, 2020
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Hopping GM's 6.0L LS-Series Small-Block
General Motors’ LS-series small-block engines have been in production for over a decade, but it’s only been within the last few years that they have really hit critical mass among average hot rodders, who are now finding them to respond superlatively to traditional hot rod power adders. One engine builder that’s jumped on the LS
Marlan DavisDec 18, 2020
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Small-Block Mopar Engine - Junkyard Jewel 5.9L Mopar Magnum - Engine Buildup
Chrysler unceremoniously unveiled the 360ci (5.9L) LA-series small-block V-8 in 1971 as a low-compression engine with only a two-barrel carburetor. The 4.00-inch-bore-by-3.58-inch-stroke powerplant was originally designed to provide an economical alternative to the popular 383 two-barrel big-block, while the shorter-stroke and larger-bore (4.04×3.31) 340-cube engine carried the performance banner. With the cancellation of the 340
Steve DulcichDec 17, 2020
Diesel Power
Diesel Power Magazine
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Top 10 6.6L Duramax Tech Articles
The third diesel engine in our tech article recap is GM’s 6.6L Duramax, which came on the scene in 2001. The powerlant, code-named LB7, was the first modern-era oil-burner to feature common-rail fueling (Cummins didn’t enter that arena in 2003), and it put out 300 hp and 520 lb-ft of torque. In subsequent years, LLY
K.J. JonesDec 7, 2020
Diesel Power
Diesel Power Magazine
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Top 10 7.3L Power Stroke Tech Articles
As diesel-powered Ford pickups go, F-250 and F-350 rigs have been motivated by oil burners since as early as 1983, when a naturally aspirated, 6.9L, indirect-injection (IDI), International Navistar V-8 was offered as an optional powerplant. Those first diesels made a then-stout 170 hp and 305 lb-ft of torque, and put the F-Series in a
K.J. JonesDec 3, 2020
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Is This the Easiest Way to Get 415 Horsepower for Your Classic Truck Build?
So why would you want to build an LS engine? Because they are cheap horsepower and  easy to build. Over a million trucks were made with V-8-powered LS powerplants since 1998. Tons of aftermarket companies are now making parts for these engines, and our test engine ended up making 415 horsepower with minimal parts. So
Wes DrelleshakNov 20, 2020
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Make 625 hp with a Junkyard 5.3L Truck Engine
This is the age of horsepower. Power masters build giant-cube big-blocks and play with exotic CNC-machined billet blocks with custom bore centers, tomato-can-sized bores, and yard-length strokes. But on the other end of the scale is a new army of small-displacement production V-8 engines capable of amazing power numbers. We had rescued a 5.3L truck
Jeff SmithNov 20, 2020
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5.7L Hemi Engine Build
Preceding the modern Hemi, traditional Mopar V-8 power relied upon the updated and rehashed Magnum series of small-blocks. Good old 318 and 360 engines with roots going back to 1964, the Magnums were an anachronism in the modern world. The new Hemi pulled the stops on technology, with the crowning touch being those all-important Hemi
Johnny HunkinsNov 18, 2020
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Boost Is Better
Ford created quite a buzz of excitement in late 2019, when it revealed that an all-new 7.3L V-8 gas engine would be the standard powerplant for its 2020 Super Duty lineup. As traditional pushrod engines go, big cubic inches (445 for the 7.3L) and the torque they create are highly desirable in vehicles like pickups
K.J. JonesNov 17, 2020
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How to Make 627 Horsepower for $3,831
Having successfully applied low-buck, 76mm, eBay turbo systems to both the Chevy LS and Ford Modular engines, we decided to try doing the same thing to a modern 5.7L Hemi. Junkyard Hemi Shopping Right off the bat, the Hemi has two strikes against it compared with the Ford and Chevy: price and availability. The Ford
Richard HoldenerNov 17, 2020
Diesel Power
Diesel Power Magazine
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Evaluating Emission Tests for California Diesels
For performance-minded diesel enthusiasts across the U.S. but especially in California, until 2010, one of the benefits in owning a diesel-powered vehicle (typically a pickup truck) was that when it came to modifying engines for increased horsepower and torque, the possibilities were theoretically endless. One of the main reasons for this is because in years
K.J. JonesOct 28, 2020
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They say everything is bigger in Texas, which meant in order to stand out Carlos Zapata needed to go bigger than anything he had ever done. Born and raised in Dallas, Carlos was part of a migrant worker family that did a lot of traveling. From picking oranges in Florida to working sugar beets in

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