Engine Swap Fundamentals: Trucks

Classic pickup trucks are great candidates for engine swaps for many reasons. For starters, the original motor in any vehicle more than 20 years is bound to be tired and in need of an intensive overhaul if it hasn’t been properly and regularly serviced throughout the years. Enthusiasts who are interested in giving their old truck a new breath of life with a modern engine with far more power, an engine swap is the best way to go given the amount of ready-to-go crate engines and install kits that can make the job doable, and rather affordable too. Whatever the case may be, a new engine can make a world of difference in the experience in building and driving a custom classic truck or vehicle of any type, really. 

New or Used? 

Either way, there’s no losing when replacing that old, whipped engine that’s way past its prime.

Depending on the type of truck you’re working on, there will be plenty of engine options to consider. “New VS. Junkyard Find” will always be a heated battle that will almost always favor a brand new mill given the reliability and warrantied performance at a slightly higher premium when compared to a used engine that would require maintenance and refurbishment before installation. While a good amount of builders will resort to ordering a virgin engine, there is a respectable sect that prefers to scour the junkyards and partake in the thrill of the hunt when looking for that perfect transplant motor that can be had at a fraction of the price. Either way, there’s no losing when replacing that old, whipped engine that’s way past its prime. 

Engine Types

While Coyote 5.0L Mustang engine swaps are trending in classic Ford pickup builds, LS engines have been all the rage in the C10 market for some time now. Since the size is similar to a small-block Chevy (SBC), there is plenty of room to plant one under the hood of just any year classic GM truck.

While there are plenty of other engine SBC V-8 options to select from such as a 350, 327 or 305 models, nowadays the LS platform has taken center stage with a very wide selection of aftermarket kits to assist in the swap of your truck’s new engine. Whichever engine route you decide to take, it will be a drastic change in performance compared to your truck’s dated power plant. 

Adaptability 

While available room isn’t an issue so much when installing a smaller, more modern engine into a classic truck, the matter of properly placing the engine becomes the real factor during a swap. While there are many installation kits available for LS and other engine platforms to pick from, the job itself is anything but plug and play—no matter what you see advertised online. Selecting correct engine mounts is paramount, and luckily, finding the right ones isn’t hard these days.

Aside from getting the new engine to sit in the right place, you’re also going to want to consider swapping out the transmission, driveshaft and all the fixins, especially if you’re going with a more high performance engine. While not necessary at first (but highly recommended), just keep in mind that the OE equipment, especially depending on its age, wasn’t designed to handle the kind of power an LS unit is capable of. Oh, and don’t forget a torque converter. 

Breathing and Cooling Options 

A new engine will require a fresh exhaust system with an emphasis on a proper exhaust manifold and header selection. While there is a range of affordability here to fit any budget swap, you’ll want to take clearance into heavy consideration here. 

A capable radiator is also of utmost importance since heat will definitely not be your new engine’s friend. Depending on the engine you’ve selected to run with, it may be more feasible to go the aftermarket route, maybe even an engine-specific selection, instead of saving a few bucks salvaging one from the scrapyard. 

Gassed 

Let’s say that you went with an LS engine to swap into your old truck. If that’s the case, then you may be ecstatic to ditch a carbureted setup and run with an EFI setup, unless you’re a big, big, BIG fan of the carb. Choosing EFI will make you consider fuel tank and pump options that will vary based on price and level of installation that you’re comfortable with. And if you just can’t stand to stray from a carbureted fuel system, there won’t be as much of an issue, but just be prepared to handle the pros/cons of whichever option you choose. 

Take Control 

It might not click instantly when planting a modern engine underneath the hood of your old truck, but new engines carry with them their own sets of characteristics to take into consideration. Now, when it comes to the ECU (electronic control unit) and wiring harnesses, you’ll have options to choose from to better dial in the installation process. This is where things can get exponentially interesting. Depending on how you plan to drive your truck, you can select an aftermarket ECU controller package that can handle the wiring, as well as enable you to unlock your engine’s true performance capabilities. Builders looking to race their truck or run it through the autocross course will get the most out of topping off the swap with the right ECU package for the job. 

Kick start your sluggish pickup project by tossing the old engine out, and swapping in a brand new crate engine or freshly rebuilt motor in its place. While an engine swap does encourage the replacement of the transmission at the same time, as well as a lot of other key equipment pieces, the job can really update a classic truck in more ways than initially realized. Increase horsepower by the ton, while also delivering a new sense of reliability in the truck you plan on getting real seat time in with whether it be at the track or open stretches of highway. An engine swap isn’t the easiest or cheapest things to do with your truck, but one that will certainly make the biggest impact in the way you enjoy it. 

LS Fest West 2018

Fans of GM’s All-Conquering V8 Gather in Las Vegas

It’s hard to believe, but 2018 marks the 21st anniversary of the introduction of the original LS1 engine for the 1997 model year. In those two decades, the LS family of V8 engines has become all things to all people and has been swapped into practically everything that moves – not just cars ranging from Mustangs to hot rods, but boats, aircraft, and even helicopters. 

It’s easy to make power with these inexpensive and anvil-tough engines, and if you can’t find the parts you want in a junkyard waiting to be reborn, the aftermarket has you covered with everything you need; blocks, internal components, engine management, and even swap kits to make installation paint-by-numbers simple. 

Recognizing how important the LS engine had become, back in 2010 Holley Performance Products organized their first LS Fest in Bowling Green, Kentucky, and ever since then, the annual event has drawn larger and larger crowds, with participants coming from all corners of the continent. It’s more than a car show, though – there’s something going on from the time the gates open until they close, on the dragstrip, the drift and autocross circuit, the chassis dyno, or the swap challenge tent. “An assault on the senses” is sort of a cliché, but it’s a totally appropriate description for a day at LS Fest.

In 2017, Holley added a second event to the schedule, the LS Fest West, taking over the sprawling dragstrip and motorsports complex at The Strip in Las Vegas, Nevada. May 2018 marked the second annual spring event, and as anticipated, it was even bigger than the inaugural LS Fest West.

“The best way I can put it to you is that LS Fest events are a party,” says Holley’s Blane Burnett. “Sure, there are competitions that take place within the event, but for the most part, everyone is here to enjoy what they’ve built and have a good time.” In case you think that Burnett might just be saying that to earn a paycheck, know this – He’s a True Believer with the cleanest daily-driven (and autocrossed) LS-swapped Nissan S14 you’ve ever seen. 

Speaking of swaps, one of the most striking things about LS Fest West 2018 was the sheer variety and number of LS-powered vehicles on the property. While the event runs three full days, it’s almost not enough time to take it all in, between all the various competitive events including drag racing, drifting, a road course time attack, and even off-road competition, then trying to see everything in the show-n-shine. 

We only got to experience a fraction of everything that was going on this year, but as you can see, if you are a fan of late-model GM performance (no matter what is wrapped around that engine) there’s a compelling reason not to miss LS Fest West 2019.

Holley Performance LS Fest West 2018

Who knew you could have so much variety from just one engine design? Holley Performance LS Fest West was the perfect way to show that and celebrate all things GM and LS V8.

LS Fest has been a staple of Holley Performance since 2010 but the West was begging for their own event. So, last year, Holley brought their famed celebration to Las Vegas and with it came a variety of automotive disciplines to show off the amazing LS engine. 2018 brought some changes, improvements, and expansions with two new exhibitions.

One of the substantial changes that came this year was combining the Autocross, 3S Challenge, and Drifting into a single area. This made getting to and from those events and the off-road or drag racing a much shorter trip. Not far from it were the new attractions – the Hoonigan “Thunderdome” and Mr. Chow’s Side Show, a demonstration of the NorCal car stunting culture that normally takes place illegally on city streets. Basically, it’s doing donuts in an enclosed area but doing so legally as compared to what normally happens.

Drag racing and LS engines just go together, so of course The Strip would be open for all three days with the Three Pedals Rumble, Cam Motion True Street, SAM Tech Street King, Vortech Late Model Heads-Up, Earl’s LS Truck 1/8-mile and MSD LS Outlaw 275 1/8-mile classes. For those not looking for compete or just wanting to run for fun, Hooker Headers opened the drag strip to Grudge Racing and Test-and-Tune, as well.

Over on the off-road side, with the Nitto Tires Off-Road Challenge, Loren Healy in the MBRP/Nitto Ultra4 4400 rig took the win. This is his older 4400 that might have seen its last race with him behind the wheel of it. It’s potentially sold and his new Unlimited ready for Ultra4 Racing’s Metal Cloak Stampede at Prairie City SVRA on May 11th and 12th.

For on-road, it was dominance by Rich Willhoff and his 2006 Corvette Z06. On the QA1 Autocross Course, Willhoff set fastest time with a 32.067-second run while on the Super Chevy 3S Challenge, he finished first with a 26.174. The Racepak Road Course Challenge saw him on top for a third time with a 1:22.388 time. The Lucas Oil Drift Challenge brought out the youngest winner so far in LS Fest History with Branden Sorensen taking first place in LS-swapped 212 Performance BMW. Second went to Noah Michaels in his Torqstorm supercharged S13 Nissan 240SX while Ian McDougall took third in his Drift Shop S14 Nissan 240SX Coupe.

That was it from LS Fest West in 2018 and they have promised to come back with even more in 2019. We’ll be there as well and look forward to bringing it to you next May!