Make 392 "Hellcat FAST" 

Let me know what you would add to either list or what I missed! Thanks guys & hopefully this helps some out there looking to build up a 392.

426 stroker for the street,keep it naturally aspirated and reliable. Go forced induction for the strip. You will learn the hard way if you don't do it this way. Ya you can do forced induction on the street if you run low boost. But if your going to do that just go NA with a stroker crank and have a engine you can put a 100k and still put down a lot of power.

Head work and valve train upgrades to handle 7k rpm is a must. With the extra 1000rpm they run right beside hellcats even if they make more power the extra rpm holds the same gear for longer and carries more speed. Example 4th gear shift point is around 85mph at 6000rpm. With the cam and upgrades to spin 7000rpm you can rev out to 105mph before needing to shift. This makes a mountain of difference.

All spot on upgrades! It doesn’t take much and the fun of modding is what it’s all about.

Great information for all of us 392 owners. 👍👍👍

Great advice - especially that final comment about the tuner. I know several builds where the engine was blown because of a bogus tune. Love those old school clips bro - such great memories.

I definitely appreciate you and your channel man, it’s so much down talk on 392s and you just find the answers were all looking for to beat the odds great video can’t wait to get started building mine up this winter 🙏🏾

All spot on player! The cool thing about building a 392 to be on par or faster than Hellcat is that you can take your time. Sometimes people get overwhelmed and want to do all the mods at once and be like "Where am I going to get $20K to do all of this!?" Remember to pace yourself (you got time), enjoy the process (successes and failures) because things will break, not all builds are flawless. And make sure you budget accordingly. #MakeThoseMemories

Cool information thanks for sharing love these kind of videos

Great tutorial on mods for these cars! Thanks man!

Great info, awesome video

Excellent video man. I would also add in stripping the seats or replacing them with much lighter ones as well as the extras in the trunk. Save about 200lbs. Can also do carbon fiber from say Anderson composites if you got the coin. These mods will increase everything while leveling the playing field on the street and track. Find the lightest wheels and break kit available along with a carbon fiber drive shaft. Springs track or street will help no spinning on the street in addition. Dif brace for wheel hop. Some times it’s not all about power sometimes it helps to utilize efficiency of what you have first so the engine doesn’t have to work as hard to compete or win as the competition is always lighter. Let’s be real if these motors were in a mustang or a vet it would be end game for them. But no credit is given as the body weighs 2 tons. So do this and all the mods mentioned say good night Chevy ford in the na game track and street unbuilt. One last thing of you are trying to roll race na in these cars intake runner length matter for upper rpm along with porting which will pair nicely with a upper rpm breathing cam. Take a look at the fastest roll racing na Camaros they tend to be hi ram on top of running nitrous or meth injection to cool inlet air like an intercooler shrinking molecules while oxygenating at the same time allowing to run more timing than just 93 but the flexibility of only running 93. Tune is paramount especially if this is done. Meth has its own problems but it’s a route just don’t run dry. Nitrous has its own problems as well but everything has its draw backs it’s just knowing how to get around it. Sorry for the book but I figure those who want info will read and those who don’t will say write books much grandpa. That’s cool 🤣.

Just running a 2.3L Magnuson at 6Lbs with a Zoomers Cat Back and a Legmaker carbon short intake (which doesn't do anything), Tuned by AJ - Hemifever I recently ran a a Cinnamon Stick widebody Hellcat and we were dead even. We pulled over after and talked for more than an hour made a new friend out of it. But he got out and he's like "That is NOT a stock 392" and I popped the hood and he's like "Ahhhhhh!" LOL Granted, like you said the ceiling is low.. I can't swap my pulley because the pistons aren't going to take it... Plus trans needs upgraded. The Kitty can easily swap the pulley and run E85. But that's ok when I am ready she will be getting a 426 short block and an SHR War Viking. Great video as always, full of great info.

Love it! I'd like to go the N/A route. I feel that would be plenty of power for me & be respectable at the strip.

Sweet video brother, I was thinking of doing something similar but you beat me to the punch 😂

Nice video. My 392 Grand Cherokee is currently getting a stage 1 cam, forged pistons and rods, upgraded valvetrains, stainless works long tubes, ati damper, along with afe intake, rear resonator delete, and a greene tune. Best stock run was 12.6@107 and a 4.26 0-60 at -151ft DA. These upgrades will get me to a sub 4 sec 0-60 and a low 12 1/4 mile

They sound pretty good. I think that’s the next thing I’m going to do is the cam I just got differential in today. 😁👍

I’d do them all to be honest. Anytime you can get some more out of a 392 without blowing up the engine is a plus in my book 💪🏽. I just have to work on the depth of my pockets lol.

Haven't heard much from Mr. Mack lately. Where he B?

Great video R/T 👏👏 Alot of people don't realize the 392 is a little bit bigger NA to start. With just 6-7 psi of boost they'll run with or better a hellcat. Hellcats at sea level are 11 psi. At 2000 ft above sea-level they're 10 psi 😉

Where is your tuner located or could you recommend someone on the east coast

Love your videos bro. Thank you. I have a 2013 charger srt8 6.4. Plan on getting long tube headers and maybe a hellcat TB. What Mackbuilt cam would you recommend?

Great vid! I’m happy with my stock scat pack but I do wonder how my rt would have done with the vision I had for it 🤔

Forgot how good my 6.1 car sounded 🙃 wait until her new 6.4 is done.. should be a fun car. Thanks for the love. Oh and btw.. 4 2020 stock hellcats now have seen 570whp on our dyno jet.. we got a low one lol.. so being as my 6.4s not far behind with stock heads and stock headers is pretty impressive.. shows how good the 6.4s can respond to the correct stuff.. they all have their great benefits.. I like NA.. since its fast enough for the street.. but lord I love me a hellcat lol

I have a 392 bro and this helped

Lol the Dave Chappelle clip made me subscribe😂😂😂😂

If stock 392s are running mid 12s, then my little 5.7 is gonna make some 392s mad, because hopefully i should be running close to a 12.0 with a factory converter and street tire, all N/A

nice video man but for that kind of money for a 392 and the money for upgrades, you might as well get an 03-04 terminator, c6 z06 or zr1, 13-14 gt500.

Wassup R/T life, got a question for , planning on getting a Durango, me and my wife have four kids and this will be my daily driver but I’m stuck between a r/t or a srt , which one would you recommend

E85 you’re gonna need that thats an extra 15-25 whp

I like your content mostly because you'll have discourse with people about their builds. I have a 2015 charger scat pack with a cold air intake, 95mm throttle body, a holley hi-ram, jba long tubes, and full 3 inch exhaust. How much do you think it'll make to the wheels with a dyno tune?

So Iv just done a complete build on my 2021 scat pack internals lifter springs pistons rods then added a procharger and Holley intake sniper manifold plus Holley fuel pump and 1500 fic injectors my question is what horsepower is to much for the trans and what trans did you go with because I have a feeling I’m ganna need one real soon

I want to see a Hellcat engine in a Prowler now that would be fast!

I have 2012 392,just a quickie about the hp90 trans. iis it doable or waste of cash only coz i dunno if it will be a straight swap with the 5 speed..and that cam n tag beautiful. much love from sth aussie outback...

Running a blower on a stock 392 is really pushing it. I say just put a Holley hi ram and ported heads.

Do a vid on recommended blowers for 6.4

No forged internals for the forced induction?

What would you do to increase hp for Durango hellcat?

I would prefer to do drop in rods and pistons, with a cam and a pro charger.

I think you hit on the head with the words “for those of us who really enjoy the building process”

This is such a loaded question. The responsible and better build platform is obviously the hellcat. We all like to mod cars, the Hellcat is the better platform to mod on, so you buy the Hellcat. That's pretty simple. The aftermarket supports it better, direct connection support is better, so it's literally better in every...single...way. The only reason you'd buy anything other than a hellcat is because you couldn't afford a hellcat in the first place. And if you couldn't afford the hellcat in the first place, you really shouldn't be sinking a ton of money into a substandard platform. And I'll leave it at this: I have never, neither on the internet nor in person, seen someone who spent the same total amount of money in their scat pack versus someone who spent that same amount of money on their Hellcat, stomp them/beat them. I have seen them stay close or even. At that point, you have to ask yourself, why go to all of that trouble, to spend the same amount of money, on a platform where you'll continuously have to monitor it, versus just doing the right thing and getting the better platform. This is really analogous to someone buying a V6 mustang or Camaro versus the V8 upper trim. Do I build the ecoboost or do I get the V8? The answer in those communities is, you get the best possible platform you can afford to build off of. The answer rings true in Hemi world too.

Has this exact setup been done with someone u know?

Will a upgraded cam void the warranty

Hey got a 2015 jeep srt what can I do to get without crazy cost

Man it would take crazy amounts of money to make a 392 as fast as a hellcat. not to mention to make it reliable because you would also need forged internals etc.

So what’s the parts\labor costs on those builds cuz I’m starting to wonder if getting the Hellcat would be cheaper

I was under the impression you couldn't throw a supercharger or turbo on a 392 do to the way the engine is without spending ridiculous money to rework various part do to the added power?

If you are adding boost to a 392, you damn well better look into forged pistons and rods. Also, the tranny is only rated at 517wtq. Boost is going to put you way over that.

Why does everybody say the six point fours are not a good motor to aspirate everybody says putting forced induction blows them up constantly you see it everywhere

Supercharging the 6.4 is a bad idea, they can't handle boost. They crack the top piston ringlands unless you open up the ring gaps, and at that point your so deep into the motor you may as well install match weight rod and piston kits. Problem is that to make the 392 compete with a hellcat is more than the added cost of a hellcat for most ppl.

I have a 2012 srt 8 FBO Cam & e85 & I’m only making 470whp. I was expecting way higher numbers. I feel like something is holding it back. Could it be the tuner?

I talk to a guy from comp cam and I was told I can get 60-80 off a cam setup ..whats ur opinion.

Can the stock 6 speed man trans handle those numbers? Maybe just upgrade the clutch?

"Or, here's another idea that's going to be very controversial, you could shut the fuck up." Classic 😂

I run 10 some 1/4 with cam and converter e85

I have a killer set up in my 1320 with heads, cam , intake, long tubes on 93 and run 11.2@121 in 2800 da and a lousy 60 ft

Forged rods, pistons, and aftermarket steel billet main caps with forced induction added to the equation for piece of mind. Don't roll the dice with the weak AF factory internals.

My RT is a cat killer

640whp after 15k mods. 🥶

Is there a cam and tune that really just gets u the lope? Ford had the “ hot rod” cams for the 4.6 that don’t really make anymore power but sounded amazing. I’m more just wanting the lope instead of chasing every ounce of hp.

You missed one of the BIGGEST issues with the 392 engine. It has cast iron pistons and connecting rods. You need to replace those with forged parts if you want to run any higher than 3 psi / 600 whp or else you are in serious risk of destroying your engine.

I can’t afford the v6 smh, we need orange man

Or you can just swap the 392 for a hellcat longblock and much cheaper to do 👍

😂😂😂 dave Chappelle tho

change rear gear ratio

I guess all of this voids your factory warranty 🤔

Can he cam a v6 tho with custom cam lmao 😂????

i'm pretty sure the reason we dont go get a used hellcat is because its like trading in your good looking girlfriend in for a hot stripper. She may be hot but she's been used, abused, run through and ragged on. Not a good decision to buy a used hellcat. And the difference between a paid off 392 and a new hellcat i could buy and modify a big block and have money left over.

Why screw UP your Scat,just for more power.just go and f****** buy one.

lmao fuck yours is pretty fast

Awesome video as always.. However your cammed boosted 392 with stock everything else is no where near as reliable as a stock hell cat.. To get there.. you need to do engine work, trans swap, then other suspension upgrades like half shafts etc.. That is just reality.. It just becomes a fast ticking time bomb and a money pit..

why would anyone want to do all this work and spend money like that to go out and do burn outs. I can take a six cylinder and burn out like they are doing. you're ruining and engine for what, just to play with, where is the since in that.

You did not mention anything about gearing. Also, when you talk about tire size, you may want to discuss how smaller diameter tires will essentially give you the equivalent of lower gears. Do these modern care have to have a cage if they get down to 10.5? I am going to come down hard on this rolling start crap. I worked as an EMT in S.F. for 4 years, and scraping innocents off the road because some dummy wanted to go fast is not cool. Do you want nightmare fuel? Because that is how you get nightmare fuel. Period. I have two cars, my daily driver which is a '16 Scat Charger. The other is my 68 Barracuda Fastback race car, which does *not* get raced on the street. Yes it will drive on the street, and to work on occasion. It even still has the rear view mirror, wipers and the heater blower motor. Also also, you may want to discuss putting these heavy HEAVY girls on a diet. I fully expect to get my 68 barracuda fastback down around 2800-2900 lbs. With my tiny, little, antique, naturally aspirated 360LA with a mere 3 speed a727 Torqflite and 4.10 Dana rear end with super stock springs, just put your hellcats back on the trailer, ladies. Fat girls have no place at the track, that's where the svelte girls belong. Obesity requires a rolling start, on the freeway, where idiots can wipe out entire families in a ball of flame and twisted metal.

now what happens if a hellcat becomes "hellcat fast"

Will not be even remotely as reliable or as consistent. Not to mention resale loss. Just buy the hellcat/redeye.

OR, you could just bolt on a Hellion Sleeper kit with tune, boosted to 5-6lbs safely on a stock motor and be done... Hellion swears up and down that 5lbs is absolutely safe and will give you that 620-30whp. People are just never happy and always want more when they know it's on the table... Superchargers will always be harder on the motor. Turbos are just added power...