Top 11 How Much Boost Can A Stock 5.7 Hemi Handle 229 Most Correct Answers

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Can a 5.7 HEMI handle a turbo?

After some tuning (11.5:1 air/fuel ratio and 18 degrees of total timing), the turbo 5.7L Hemi belted out 571 hp at 5,300 rpm and 619 lb-ft of torque at 4,300 rpm. Equipped with a Turbo Smart wastegate, the boost varied by less than 1/10 of a pound!

How much HP can you add to a 5.7 HEMI?

On a stock 5.7 HEMI you may only see gains around 5-10 horsepower. With other mods like an intake, headers, etc. the tune alone may see gains closer to 15-20 horsepower. Torque gains can be similar and you’ll likely notice better throttle and engine response.

Can a 5.7 HEMI handle a supercharger?

Is your 5.7L HEMI lacking the power you desire. Upgrade it with a 5.7L HEMI supercharger. This is a quick and easy, reliable horsepower boost. Superchargers are a great option to add serious power at a very manageable price tag.

How much HP does a supercharger add to a 5.7 HEMI?

Experience shows HEMI supercharger kits are the best power-per-dollar option for the HEMI engine. Stock 5.7 HEMIs see horsepower increases of 120 to 145 HP, 6.1 and 6.4 HEMIs can expect 160 + HP gains. Prices range from $5,500 to $7,900 for the supercharger kit, installation and tuning services are extra.

Can you put a Hellcat supercharger on 5.7 HEMI?

This kit is to add the Hellcat Supercharger to your 5.7L Hemi, 6.1L Hemi, and 6.4L Hemi. Each kit will come with instructions and tech support on your install. We are also available for installs in the Chicagoland area. PLEASE NOTE: THIS KIT WILL NOT FIT THE RAM.

What supercharger fits a 5.7 HEMI?

The most common ProCharger 5.7 HEMI supercharger kit is the P-1SC-1. Complete kits are rated for about 520-530hp with the ProCharger 345 HEMI system alone on 7psi.

How can I make my 5.7 HEMI more powerful?

Get more power out of your 5.7 Hemi and give your engine an extra punch with compressed air to blast through the cylinders. Turbochargers and superchargers give your Dodge Ram 1500 bolt on horsepower and torque while doing very little to your fuel efficiency.

How much horsepower does a Diablo tuner add?

DiabloSport tuning on the inTune i3 or Trinity 2 adds up to 27 HP and 23 LB-FT of torque to the tires with no other mods necessary. On top of huge performance increases, DiabloSport offers the features and adjustment options that let you customize your experience.

Can you put a turbo on a HEMI?

Turbocharge your HEMI to get the performance that you crave. Our HEMI turbocharger kits are available to fit most budgets and give the most demanding of drivers reliable horsepower for any level. Boost your Hemi engine with a complete Turbo Kit. These kits include all the parts needed to turbocharge your Hemi Vehicle.

How many miles will a 5.7 HEMI last?

5.7 Hemi engines are good for 250-300 000 miles and more if properly cared for and regular maintenance is carried out. Early models suffered from valve seat issues which were rectified after 2008. It’s not uncommon to find high mileage 5.7 Hemi trucks running around today.

Whats better a supercharger or ProCharger?

The high-end Procharger is ideal for those who want to run at high RPMs, but it may not be the best gadget for you if you need a boost at lower speeds or don’t appreciate running so fast. On the other hand, the Supercharger system shines when you need low-speed performance, such as off-roading or driving about town.

What’s the difference between a 392 HEMI and a 5.7 HEMI?

The 6.4 HEMI generally offers an extra 75-100 horsepower over the 5.7 engine. Thanks to larger displacement the 392 is also good for an extra 60-80 lb-ft. Low-end torque is also about 70 lb-ft more than the 5.7 further widening the gap between the two.

Is the 5.7 HEMI fast?

The 5.7L V8 HEMI® engine is available only on the R/T trim This engine offers 370 horsepower with 395 lb-ft of torque. With this powerful HEMI® upgrade, you’ll get a 0-60 mph of 5.2 seconds and a ¼ mile time of 13.7 seconds.

Can you put a turbo on a HEMI engine?

Turbocharge your HEMI to get the performance that you crave. Our HEMI turbocharger kits are available to fit most budgets and give the most demanding of drivers reliable horsepower for any level. Boost your Hemi engine with a complete Turbo Kit. These kits include all the parts needed to turbocharge your Hemi Vehicle.

Can you put a turbo in a Ram 1500?

Adding the Dodge Ram turbocharger kits and accessories gives the Ram an extra boost of power, enhancing the vehicle’s performance both on and off the road. The power of the hemi is accentuated with the turbocharger kits and accessory items.

What does a supercharger do for an engine?

A supercharger is an air compressor that increases the pressure of air supplied to an internal combustion engine. This aids in higher power output as the engine gets more oxygen in each of its intake cycles and helps it to burn more fuel.

How much power can the 5.7 and 6.4L HEMI engines handle?

How Much Boost Can A 5.7 Engine Handle? – McNally Institute

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Summary of article content: Articles about How Much Boost Can A 5.7 Engine Handle? – McNally Institute A stock 5 should be properly tuned. 7 / 6. The crank will handle 450hp at full power, or 7-8 lbs of boost if you are using a boost system. …
Most searched keywords: Whether you are looking for How Much Boost Can A 5.7 Engine Handle? – McNally Institute A stock 5 should be properly tuned. 7 / 6. The crank will handle 450hp at full power, or 7-8 lbs of boost if you are using a boost system.
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How Much Boost Can A 5.7 Engine Handle? – McNally Institute

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Junkyard Hemi Shopping

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Power Numbers Turbo 57L Hemi

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345 HEMI Updates & Changes

Best DodgeRam 57 HEMI Upgrades

1) Ram 57 HEMI Tuners & Tuning

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The 5 Best Dodge 5.7 HEMI Upgrades - 5.7 V8 Performance Mods — The 5 Best Dodge 5.7 HEMI Upgrades – 5.7 V8 Performance Mods

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Most searched keywords: Whether you are looking for 5.7 Hemi Supercharger Kits Updating Looking to upgrade your HEMI powered car or truck with a 5.7 hemi supercharger kits? A2Speed has all of your supercharger needs covered5.7 Hemi Supercharger Kits
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5.7 Hemi Supercharger Kits

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HEMI Supercharger Kits

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Summary of article content: Articles about how much boost can the hemi handle? – DodgeForum.com 8psi should be ok. Just make sure you have a proper tune for it to keep the timing low and the mixture a little rich under boost. I would ask … …
Most searched keywords: Whether you are looking for how much boost can the hemi handle? – DodgeForum.com 8psi should be ok. Just make sure you have a proper tune for it to keep the timing low and the mixture a little rich under boost. I would ask … how much boost can the hemi handle?, dodge,forum,dodge forum,sale,parts,challenger,ram,diesel,dodge chat, dodge ram, dodge challenger, durango,truck,neon,viper,dodge viper,dodge suv,avenger,dart,journey,caravan3rd Gen Ram Tech – how much boost can the hemi handle? – how much boost can the stock internals on the hemi handle saftly? Im looking at a procharger kit that runs 8-9 psi n i have seached the forums and cant seem to get a straight answer on if that would be safe or not, thanks for you help.
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how much boost can the hemi handle? – DodgeForum.com

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The stock motor can handle aprox. The stock ecu is only good to 17psi, after that you’ll more than that and it will start lifting the head and … …
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How Much Boost Can A 5.7 Engine Handle? – McNally Institute

In other words, the stock internals were able to handle about 18 psi of boost and 1100+hp, with race gas and the proper tuning. A Dodge 5 is mentioned in the same magazine as well as an article about what will happen if you own one. 7/6.

7 Take? A stock 5 should be properly tuned. 7 / 6. The crank will handle 450hp at full power, or 7-8 lbs of boost if you are using a boost system.

7 Hemi Hold? The 2021 Ram 1500 5 will be a model year. The HEMI V8 engine is available as an upgrade for the 2021 Ram 1500, which has a 5.7L V8 engine. The HEMI V8 engine in this car has a power output of 395 horsepower and 410 pounds per square inch. -ft. You can play with Torque on your daily drive with this set of instructions.

7 Hemi? HEMI kits are available to fit most budgets and provide the most demanding drivers with reliable horsepower. We offer a wide range of HEMI kits to meet all your performance needs. The complete Turbo Kit will increase the performance of your Hemi engine. Your HEMI will be turbo charged with API turbocharger components.

7 Hemi? HEMI supercharger kits are the best option for HEMI engines that require a lot of power per dollar. HEMIs with a power output of 120 to 145 HP, and 6 to 7 HP, see horsepower increases. 1 and 6. The gains for HEMIs 4 and higher can be 160 and 160 plus HP. Supercharger kits cost between $5,500 and $7,900, installation and tuning services are included.

7 Handle? According to Arrington, (the five) is the correct number. In terms of internals, the rods/something around there will not be able to handle more than 650hp. The crank shaft can handle up to 650 horsepower.

7 Hemi Handle? A stock 5 should be properly tuned. 7 / 6. If you do not inject methanol, I would not recommend a boost of more than 5 psi without it. A crank will handle 450hp or 7-8 lbs of boost at the crank. As a result of the cast pistons breaking in these engines, they can cause detonation or power to exceed 450hp.

7 Hemi? If you have a Ram that runs on forced induction, you can’t beat the performance of a supercharger (gas) or upgraded turbo (diesel) – whichever you choose, you’ll get the same amount of power. Your 5 should be able to generate more power. With compressed air, you can give your engine a boost with a powerful Hemi engine.

7 Hemi? The Stage 3 HRT 224/234 Hydraulic Roller Cam Kit for Dodge 5 is available. The HEMI w/ VVT 2009+ cam package can add +86 HP.

7 Hemi? The most reliable and largest power gains for HEMI engines have been delivered by ProCharger supercharger systems for over a decade. Stock 5 pumps with high quality pump gas can achieve power gains of over 160 HP. There are 7L HEMI engines.

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 4.6L was introduced in 1991, so it has enjoyed the longest production run and is therefore the most available and least expensive of the three. The GM 5.3L LS was introduced in ’99 models. The 5.7L Hemi wasn’t released until 2003, and it wasn’t until the following year that the Hemi became universally available throughout the product line. The market pricing reflects this shortened production run. Where the Ford can be had for as little as $200 and the Chevy for $500 to $600, the Hemi came in at more than twice the price of the Chevy. A little haggling finally netted us a complete 5.7L takeout from a local wrecking yard for $1,500. Expensive compared with the Ford and Chevy, but still a bargain considering the price of a new crate motor.

Stock Hemi Parts and Power

See all 7 photos See all 7 photos Cobbling some linkage to make the electronic Hemi throttle body open manually on the dyno.

Though the exact numbers vary slightly depending on the application, figure around 345 hp and as much as 390 lb-ft of torque for the stock 5.7L Hemi. Over the years, Dodge upgraded the Hemi with a variety of trick systems including variable cam timing, multiple displacement systems, and active intake manifolds. Our ’06 5.7L featured none of these upgrades but still offered more displacement than either the Ford or Chevy, cylinder heads that were at least the equal of the Chevy (and significantly better than the Ford), and the highest rated normally aspirated power output of the trio (45 hp more than the Chevy and 85 more than the Ford). According to so-called experts on the web, the weak link in the Hemi is the factory cast pistons, but we know from experience that the factory slugs will withstand some serious power given the proper, safe tuneup. For our turbo add-on, costs were kept in check with the use of the factory Hemi exhaust manifolds. Not only are they plenty stout, but their design helps maximize heat energy to the turbo to improve both boost response and power production. The 6.1L SRT8 manifolds might be an even better choice, but the cast truck manifolds performed well during our testing. To speed up the process of installing what we had dubbed the 30-Minute Turbo Kit, we reused many of the eBay-sourced parts from our earlier Ford buildup—including the turbo, intercooler, exhaust merge, clamps, and reducers—but they are accounted for in the bottom-line cost.

See all 7 photos See all 7 photos

Tuning was more critical on the Hemi than the Ford or Chevy. As with the Ford, we relied on a FAST system on the dyno for simplicity’s sake. To illustrate the power gains offered by the homemade turbo kit, we first ran the motor in normally aspirated trim. Changes to the stock Hemi included a set of SRT8 exhaust manifolds and swapping out the factory injectors for a set from Kenne Bell that flows 55 lb/hr. Westech’s Ernie Mena nearly nailed the tune on the first run (using a file he made for an LS motor, of all things), and we were eventually rewarded with peak numbers of 383 hp at 5,200 rpm and 420 lb-ft at 4,300 rpm.

See all 7 photos See all 7 photos

After establishing that our $1,500 motor was at least a real runner, we installed the turbo kit. Initially, the motor was run with the wastegate spring set for 8 psi. After some tuning (11.5:1 air/fuel ratio and 18 degrees of total timing), the turbo 5.7L Hemi belted out 571 hp at 5,300 rpm and 619 lb-ft of torque at 4,300 rpm. Equipped with a Turbo Smart wastegate, the boost varied by less than 1/10 of a pound! The Turbo Smart gate may cost a little more than the eBay stuff we used on the Ford, but boost control is not something to skimp on. Using a manual wastegate controller (also from Turbo Smart), we cranked up the boost to a maximum of 10.4 psi and saw 627 hp at 5,500 rpm and an amazing 689 lb-ft of torque at 4,300 rpm. Torque production exceeded 650 lb-ft from 3,600 rpm to 5,000 rpm, making for some serious grunt.

See all 7 photos See all 7 photos

See all 7 photos See all 7 photos

When all was said and done, the Dodge cost more than the Chevy or Ford, but this shouldn’t come as a shock to most Dodge enthusiasts. More important, in our impromptu, all-American, 76mm shootout, the turbocharged Hemi produced the highest power numbers at the lowest boost level.

Power Numbers: Turbo 5.7L Hemi

See all 7 photos See all 7 photos

The 5 Best Dodge 5.7 HEMI Upgrades

The Dodge 5.7 HEMI engine is a popular engine in many Dodge & Chrysler performance cars, Ram trucks, and more. Its large displacement offers solid power from the factory. However, the 345 HEMI also leaves a lot on the table. A few simple upgrades can take the 5.7 V8 to the next level. In this guide, we discuss the best 5.7 HEMI upgrades, power gains, cost, performance, and more.

*We may refer to some headings or titles as Ram, Dodge, Chrysler, etc. We may also be more specific with Ram 1500, for example. This article is applicable to all models with the 5.7L HEMI engine – also known as the 345 HEMI. Fitment does vary, but the concepts and mods we discuss are relevant to all.

345 HEMI Updates & Changes

As an 18+ year old engine the 5.7 HEMI has been through its share of updates. Many of the updates are intended to keep up with stricter emissions and maintain competitive performance and power. We wrote a guide about 5.7L HEMI V8 common engine problems, and touched on these updates in greater depth.

2009 model year saw the largest update to the 5.7L engine. It’s known as the 5.7 Eagle. A lot of the changes help improve power and performance, such as variable cam timing and a better flowing cylinder head. Check out the above common problems article for some more details on the specific updates. Certain models like the Ram 1500 and Dodge Charger have some small differences and offer different power output.

The main purpose of this section is just to talk generally about 5.7 HEMI performance updates. Not all engines will respond exactly the same to mods. The later 2009+ 5.7 Eagle is generally more capable. However, earlier engines have a lower starting power output and may actually gain more from certain mods like intake manifolds.

Point is – any power or performance gains we discuss are rough estimates. It’s not just about the differences in engines, either. Results can vary a lot depending on other mods, conditions, age, mileage, etc.

Best Dodge/Ram 5.7 HEMI Upgrades

A few of the best bolt-on performance upgrades for the 5.7 HEMI V8 engine include:

Tune (& fueling)

Intake

Headers

Exhaust

Cams

Less the cams these are all pretty simple bolt-on mods. They are the foundation to making more power on the 345 HEMI. Even if you’re going forced induction the above mods are still a great starting point.

Throughout this article we will take an in-depth look at these 5.7 HEMI power upgrades. We’ll cover everything from the benefits, risks, power gains, and more. Of course, there are tons of great HEMI performance parts so the above is an exhaustive list. There are simply too many options and various builds that we can’t cover it all. However, let’s talk about a few other common 5.7L V8 HEMI engine mods.

Other 5.7 V8 Performance Power Mods

The above mods are our primary focus in this article. However, we will also address a handful of 5.7L HEMI power upgrades including:

Superchargers

Throttle Body

Intake Manifold

Gearing

Towards the end of the article we will touch on all of these mods briefly. Additionally, check back in the near future since we’ll have individual guides for a lot of 5.7 HEMI mods coming soon. Anyways, let’s dive in and discuss some of the best Dodge & Ram 5.7 HEMI upgrades from above.

1) Ram 5.7 HEMI Tuners & Tuning

Adding a tuner to your 5.7 HEMI is debatably the single best power upgrade. It’s not just about the benefits of tuning the 345 Mopar engine. A tune is also the foundation to making more power from additional mods. When you start adding air-flow and fuel it’s important to properly calibrate the computer (PCM) for all of the changes. A tune is still a great performance mod as a standalone upgrade for Dodge and Ram vehicles.

Adding a tuner to your 5.7L V8 comes with some of the following benefits:

5-15 horsepower (on an otherwise stock engine)

Similar torque gains

Improved response

Better fuel economy

There may be some other benefits, but performance and power are the big ones. On a stock 5.7 HEMI you may only see gains around 5-10 horsepower. With other mods like an intake, headers, etc. the tune alone may see gains closer to 15-20 horsepower. Torque gains can be similar and you’ll likely notice better throttle and engine response. Better fuel economy is possible with the right tune.

You’ll need a tuner device to actually flash the 345 HEMI powertrain control module (PCM). Most tuners cost about $350-600 and include some basic off-the-shelf tunes. The biggest gains can be had with custom tuning the 5.7L V8 engine, but that can add another $200-300. Anyways, a tune is a solid overall mod for a fair price. It’s also required for certain mods like some intake manifolds, cams, and other upgrades.

Dodge 5.7 HEMI Fueling for Tuners

It’s important to note – the biggest gains from a 5.7 HEMI tuner will be on higher grade fueling. The higher octane you have access to the better. Most only have access to 91 or 93 octane. However, if you have easy access to higher grade fuels you may be able to pick up even more power.

We’re big fans of ethanol (E85) fueling, but it’s overkill on NA engines. You can find options to convert your 5.7 HEMI to E85. This can offer extra gains of 10-20+ rear wheel horsepower. However, running full E85 is about 30-40% less fuel efficient so trips to the gas station will be frequent. That’s especially true if you’re using all of the power.

Long story short – the higher the octane (or ethanol E85) the better power gains you’ll see with a tune. 91 or 93 octane tunes likely make sense for most people unless you’re willing to deal with the hassles of E85 or race gas.

5.7L V8 Tuner Price: ~$350-600

5.7 HEMI Tuner HP Gains: 5-15 horsepower (20-30+whp possible with race gas or E85)

2) 345 HEMI V8 Performance Intake Mods

Next up are performance intake upgrades for the 5.7 HEMI V8 engine. You may also hear these mods referred to as cold air intakes, intake systems, etc. Performance gains with a 345 Mopar cold air intake may be underwhelming with light mods. However, as you start adding more and more power it’s important to help the engine breathe.

The right intake upgrade can also help get cooler air into the Dodge/Ram 5.7L engine. We typically don’t agree with the cold air intake designation, though. Most gains are simply from a more efficient air-box design and higher flowing cone filters. Anyways, a few benefits of a performance intake include:

0-7+ horsepower

More torque possible

Better response

Improved engine sound

Factory intakes on the 5.7 HEMI flow pretty well for the engines intended power output. If you don’t have any mods then an intake likely won’t offer much if anything at all. However, throw a tune, headers, and other mods into the mix and an intake can offer 5-7+ horsepower. It’s not great, but an intake is fairly cheap and easy to install. We also think it looks great in the engine bay and the sounds are awesome, too.

Dodge Ram Intake Upgrades – What To Look For

To be frank, many intakes are going to offer similar power and performance. There still are some important factors to consider, though. Look for the following in a Dodge Ram 5.7 HEMI performance intake:

Closed air-box design (unless going forced induction)

Quality filter from known brand

Easy fitment/install

An open design intake is awesome for increasing flow on engines running boost. Intake temperatures don’t matter as much when you have an intercooler. However, on a NA 5.7L Mopar engine we recommend sticking with an air-box and lid. Otherwise, look for a quality 5.7 HEMI cold air intake kit with easy fitment and a good air filter. S&B and K&N are both great filter options.

Intake Upgrades Price: ~$200-400

Dodge 5.7L Intake HP Gains: 2-5+ horsepower

3) 5.7 HEMI V8 Headers Upgrades

Headers can be a longer topic since there are so many options on the market. Headers are also known as the exhaust manifolds. Catless vs high-flow cats is an important topic for exhaust manifold mods. We’ll try to cover as much as we can in this short space, but an article about 5.7 HEMI headers upgrades is coming very soon. Until then let’s jump in and discuss this awesome mod.

Without going forced induction headers are going to offer some of the best power gains on the Dodge 5.7L engine. If we were planning any two mods it would be a tune and headers without question. The whole idea of headers is to reduce back-pressure. Since the exhaust manifold bolts right to the engine it’s going to offer the biggest power gains of any part of the exhaust systems. Benefits of 5.7 HEMI headers upgrade include:

15-30+ horsepower

10-20+ torque

Louder, aggressive exhaust note

Not only are the power and torque gains impressive, but larger headers like 1 7/8″ headers can really wake up mid-range torque. Look for gains in the ballpark of 15-20 horsepower on lightly modded engines. With the other basic 5.7 HEMI upgrades you might see as much as 25-35 horsepower. A louder and more aggressive exhaust note is another benefit.

345 HEMI Catless vs High-Flow Headers

Again, the main purpose of headers is to reduce back-pressure. Fully catless headers will do the best job at that. Then there’s sizing like 1 5/8-inch headers or larger 1 7/8″ options. Larger headers are also going to offer better flow, so a 1 7/8-inch catless header is likely the best performance upgrade for the 5.7 HEMI.

However, catless headers are technically illegal in all states. It also likely you won’t pass emissions testing. That’s where high-flow cat headers come into play for the 345 Mopar engine. They still pick up incredible power gains, but not quite as impressive as catless options. Still expect gains in the 10-25+ horsepower range.

345 HEMI Headers Upgrade Price: $400-1,200+

5.7 HEMI Headers HP Gains: 10-30+ horsepower

4) Dodge/Ram 5.7L V8 Exhaust Systems

Alright. We’ll speed through this section a bit faster since it’s similar to the headers discussion. Exhausts also aren’t as beneficial as headers, so if you’re just looking for one exhaust mod then headers should be the clear choice. Anyways, an exhaust system is still among the best 5.7 HEMI upgrades.

Power gains can vary a lot depending on exact exhaust configuration. It’s a similar topic to the headers above. The end goal with a Dodge/Ram 5.7L exhaust upgrade is to reduce back-pressure. A better flowing exhaust is going to offer the biggest gains. Exhaust mods on the 5.7 HEMI can offer the following power benefits:

3-10hp

Similar torque

Awesome sounds

A full exhaust system (not including the headers) can offer gains around 3-10 horsepower. 5.7 Mopar engines with a catted exhaust will likely be on the lower-end. A fully catless exhaust may offer 5.7 HEMI power gains in the 7-10hp ballpark. You’ll also get some awesome engine and exhaust sounds with the right exhaust system. However, things can get LOUD very quickly if you opt for a fully catless exhaust, no mufflers, and header upgrades.

5.7L HEMI V8 Exhaust Price: $300-1,000+

HEMI Exhaust HP Gains: 3-10 horsepower

5) 5.7 HEMI V8 Cam Upgrades

Yet another lengthy topic is 5.7 HEMI cam upgrades. We don’t have the time to cover all of the specific details in this article. There’s a lot to discuss when it comes to things like duration, valve list, LSA, and more. All of these factors can directly effect the results of camshaft upgrades on the 345 Mopar engine. We’re sure this is getting old for you to read. It’s certainly getting a bit old to write, but we’ll have a 5.7 HEMI camshaft upgrades guide soon.

Certain cam mods may trade-off some low-end torque in favor of massive top-end results. However, that’s not true of all camshaft upgrades. We’ve seen some pick up 50-60+ horsepower and 20+ torque without losing any low-end performance. Not everyone should expect those results, but it’s still highly impressive.

There is a downside to performance cam upgrades on the 5.7 HEMI engine, though. Basic kits can start at $500 to $800+. Add in some other stuff and a cams can run to $1,300 or more – like this Comp Cams Stage 3 HRT kit. If you can’t DIY the install then that’s another major cost. Labor for cam installs can run in the $700-1,000+ ballpark.

Add it all together and you could be looking at $1,500 to $2,500 for 5.7 HEMI cam upgrades. That’s not a cheap power mod. Then again, it’s still excellent bang for you buck if you opt for the right setup. Gains of 40-50+ horsepower aren’t unheard of. It’s about as good as it can get without adding forced induction.

5.7 HEMI Camshaft Price: $500-1,300+

Cam Upgrade HP Gains: 20-50+ horsepower

Other 5.7 HEMI Performance Mods

Below are some mods that didn’t quite make the primary list. We believe the above upgrades for the 5.7 HEMI offer the best bang for your buck. However, plenty of other great options and choices exist for power mods on the 5.7L V8 engine. This still isn’t an exhaustive list, but a few of the runner-ups. Again, we’ll have tons more mod guides and performance info on the 5.7 HEMI soon.

1) Dodge 345 HEMI Supercharger Kits

Superchargers for the 5.7 HEMI is a long topic. We’re specifically referring to superchargers here, but any forced induction is a great mod. It’s the recipe for serious 500-700+whp builds. However, there’s so much to discuss. We actually wrote a 4,000+ word article about 5.0 Coyote superchargers and feel like we could have written three times that to truly cover everything in-depth.

Regardless, if you’re truly looking to make a lot of power then 5.7 HEMI supercharger upgrades are a great choice. If you really want to push the limits it gets expensive, though. Fueling, cooling, pistons, rings, and more need to be addressed. In essence, a Dodge/Ram 5.7 V8 supercharger can make serious power but it can also be seriously pricey.

2) 5.7L HEMI V8 Throttle Body Mods

Throttle bodies on the 5.7L V8 engine are 80mm. It’s actually the same size as the throttle body on the larger 6.4 HEMI’s. For this reason, we don’t believe it’s a necessary upgrade until the 450-500+ horsepower ballpark. It flows well enough even on the larger, more powerful engine.

If you do opt for a throttle body upgrade you may see some small power and performance gains on the 5.7 HEMI. We just don’t think it’s enough to justify the cost unless you’re really shooting for 450+ horsepower. Anyways, if you do upgrade stick with something modest like an 85mm throttle body.

3) Ram 5.7 HEMI Intake Manifold Upgrades

An intake manifold is another one of the most popular 5.7 HEMI power upgrades. Porting the manifold is one choice otherwise you can upgrade to a new aftermarket manifold. For the Ram 1500 some opt to upgrade to the 6.4 HEMI manifold with an upgrade kit like this. Another intake manifold mod is switching from the stock 5.7 HEMI manifold to a 6.1 HEMI manifold.

Results can vary quite a bit with manifold upgrades. You may gain 5-10 horsepower with the right manifold. However, some trade-off a little torque in favor of top-end power. We’re not totally sold on results unless you’re shooting for a powerful 400-450+ horsepower build. Hence the reason it didn’t make our list of the 5 best basic 5.7L HEMI bolt-on mods from above.

4) Rear Gearing on 5.7 HEMI Engines

Many Dodge, Ram, and Chrysler models with the 5.7L MOPAR engine have pretty low final drive ratios. These engines are also a bit lacking on torque for the modern days. Changing the rear axle ratio can help with torque. The trade-off is shorter gears and a higher speed at a given RPM. However, it can really help bring the 5.7 HEMI to life.

Ram 1500 trucks come with standard 3.21 rear gears. Moving up to something like a 3.92 is a solid option. Some Dodge Charger models use a rear gear set as low as 2.62. Upgrading to something like a 3.55 or 3.73 is a good change for the HEMI. This is a long topic to go all the way in-depth, but we’ll consider discussing this in an article of its own.

*We think this is a really good upgrade for the 5.7 HEMI if you want better acceleration and torque. It simply didn’t make the above list since it’s not a true 5.7 HEMI engine or power mod.

5.7 HEMI Engine Upgrades Summary

The 5.7 HEMI engine is a little underpowered from the factory, in our opinion. However, its large displacement means there is a lot of potential left on the table. Even simple bolt-on mods can push the 5.7L Mopar V8 to solid results. A tune is a great starting point to build the foundation to make more power.

After a tune we believe headers and camshafts are the next best upgrades. They can both be a little pricey if you go for top of the line options and don’t DIY the work. However, a tune with headers and cams can easily add 30-70+ horsepower once all is said and done. 5.7 HEMI upgrades like exhaust systems and intakes can also add a bit more power for reasonable prices.

Those looking for more should consider Dodge/Ram 5.7L performance mods like throttle bodies, intake manifolds, and final drives. If that’s not enough it’s probably time to consider forced induction such as a supercharger. Go this route and you can easily build a 500-700+whp 5.7 HEMI, but you also might find yourself $20,000+ deep into the build. Regardless of what route you choose – a few upgrades can turn the 5.7 HEMI in a totally different beast.

What’s your experience with 5.7 HEMI mods? Are you considering any?

Leave a comment and let us know!

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Top 11 How Much Boost Can A Stock 5.7 Hemi Handle 229 Most Correct Answers

Can a 5.7 HEMI handle a turbo?

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The 5 Best Dodge 5.7 HEMI Upgrades – 5.7 V8 Performance Mods

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