459cc Max Performance Vs Predator 420cc 🔥Harbor Freight Engines

In today's video we test the stock 420cc Predator and the stock 459cc Max Performance Predator Engines from Harbor Freight. I show how to properly install a 40 series cvt / torque converter rated for 8hp-18hp engines on a go-kart. Then we put the two engines onto the blueberry go kart and take them for top speeds, 0-30 mph, and timed track laps.
Parts For The 420cc Engine
420cc Hemi Engine - bit.ly/3qHtMdR
420cc Stage 2 Kit - bit.ly/34iuHpg
34mm Mikuni Kit - bit.ly/2V4WmZa
Performance Kit - bit.ly/2CA7raI
Billet Rod - bit.ly/2IOKQue
Billet Flywheel - bit.ly/2VR3lEw
Header Kit - bit.ly/2NDPdM9
40 Series CVT Kit - bit.ly/2Q6mjG7
Chromoly Pushrods - bit.ly/36tsskn
.308 Cam - bit.ly/2Y7SDfP
.275 Cam - bit.ly/2x7EN1O
50lbs Valve Springs - bit.ly/3cYYj0x
65lbs Dual Valve Springs - bit.ly/3HU7GxC
Parts For The 459cc Engine
34mm Mikuni Kit - bit.ly/2V4WmZa
Performance Kit - bit.ly/2CA7raI
Header Kit - To Be Announced
40 Series CVT Kit - bit.ly/2Q6mjG7
Chromoly Pushrods - bit.ly/36tsskn
.308 Cam - bit.ly/2Y7SDfP
.275 Cam - bit.ly/2x7EN1O
Billet Rod - To Be Announced
Billet Flywheel - To Be Announced
50lbs Valve Springs - bit.ly/3cYYj0x
65lbs Dual Valve Springs - bit.ly/3HU7GxC
Blueberry Parts
Engine Plate - bit.ly/2rxt1KX
Rear Shocks - bit.ly/2HEsqfl
Front Shocks - bit.ly/32f7sgu
Steering Wheel - bit.ly/31IRn0z
Rear Wheel Hubs - bit.ly/2K3O7qT
14" Chrome Wheels & Tires - bit.ly/3qL9suu
54" Axle - bit.ly/3ikqvQa
1" Axle Coller - bit.ly/2RFcca8
Axle Bearing Kit - bit.ly/3xnCPTZ
Brake Kit - bit.ly/3by3xB4
Sprocket - bit.ly/31LdL9w
Sprocket Hub - bit.ly/340rc7m
Brake Rotor - bit.ly/2Yg4ib2
Merch & Events - bit.ly/33YbmtO
Check Out Go Power Sports for all your Go kart needs! bit.ly/2viX9vP
Parts & Tools used on the channel - amazon.com/shop/redbeardsgarage
Quantum Machinery- Siegmund Welding Table - bit.ly/36PHm6G
- Nargesa CC60 Bender - bit.ly/2xWDVxj
Prime Weld Tig 225x - bit.ly/2EbSIqK
Prime Weld MIG180- bit.ly/2Q44l5V
Benchmark Abrasives (cut-off wheels, flap discs..) bit.ly/2SENg4f save 10% REDBEARD10
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Instrumentals by Chuki Beats - / chukibeats
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*********Disclaimer*********
Please do not try to re-enact or recreate anything you see in these videos. We are trained professionals. Red Beards Garage does not take any responsibility for injury's created by doing so.
#RBGKarts #RedBeardsGarage
00:00 Intro
00:23 Hemi or Non Hemi Head
01:39 40 Series cvt hp ratings
02:37 Getting the engines ready for application
05:00 How to install a cvt / How to install a torque converter
09:10 Pulling the go kart in the garage
09:49 Installing the 420cc
10:35 420cc Top Speed
11:39 420cc Hill Climb
12:09 420 Woods Lap Time
14:39 Garage Talk
16:00 Changing Engines on Go-Kart
17:02 459cc First drive
18:25 Removing throttle stop from 459cc
20:11 459cc Woods Lap Time
22:36 459cc Top Speed
23:54 459cc Hill Climb
25:00 420cc VS 459cc Final Results
26:35 Outro

[@MegaDoc1985]

Bought the 459 last week for a go cart I’m re doing. I’m looking forward to the future mods for this motor! Thank you

[@RedBeardsGarage]

Right on!

[@caseymoore9737]

Throw a 34mm mikuni and header with a little stiffer valve springs and you will be happy. The carb alone even without a header makes a huge difference in power

[@andrewely9198]

How fast does it go?

[@clayhunna7357]

@@caseymoore9737 what size pilot and main jet is inside the\your 34mm mikuni ? I just got me a 459cc and want to go the cheaper PWK flatslide 34mm carb route, be awesome to know the jetting size as a reference point to aim for. Cheers

[@DeeBrackin]

​@@RedBeardsGaragequick question i have same buggy. What rims and tires are you running

[@guysmiley3795]

Great content as always, your banter and craziness cracks me up! The videos where you guys are just having fun are the best. Can’t wait for the next deuce video.

[@TheBiggestRedneck]

Definitely Should Leave Those rims & tires on that go cart & have the frame painted blue with a silver flake it would look sooooo good

[@Icysoles60]

Just discovered this channel, and man I love it!! Awesome content

[@RedBeardsGarage]

Welcome aboard!

[@p4our587]

First visit to the channel. I liked your analysis of the 2 motors. It wasn't what i wanted to hear… it was what i was going to hear. That's good for everything in life. Stay true to yourself & everybody you come into contact with. Thank you for sharing!

[@traedrose7963]

Love the comparison videos. Thanks for great content.

[@RedBeardsGarage]

Thanks for watching!

[@fredericklogue6566]

Got mine today, can't wait for your build. Great work.

[@RedBeardsGarage]

Awesome! Thank you!

[@ryankopera7505]

Great video guys! Fun to watch!

[@Parents_of_Twins]

From someone who hurt their back lifting something heavy while bending over, young and didn't think, get your self an engine lift or something like that to put those engines into those frames. I was working as a hod carrier and reached over and picked up two bags of cement at 94lbs per bag and my back has never been the same. I was 20 years old at the time and strong as hell, I weighed 154lbs and could pick up 4 five gallon buckets of mortar and carry them. I started working as a hod carrier for my dad at around 10 and nobody taught me how to properly lift nor stressed the importance of lifting properly. Still at the end of the day it was my decision to move those two bags at once instead of doing it one at a time. Either way I deal with daily back pain now so be smart and be careful with your back.

[@demoman9116]

This is awesome! Wish some of you powersports channels were closer too me. I'd love too help out with projects like this

[@cwgreen1938]

I liked your comparison video. I am really excited to see the videos on the performance parts videos. Thanks. Just so you know, I watch most of Cars and Cameras videos and I think you are far ahead on construction, fabrication, shop efficiency, and almost all respects of a little engine shop. That is one reason that I am a patreon of "Red Beard's Garage".

[@RedBeardsGarage]

We appreciate you being here!

[@blueshowlar]

I'm glad I found your channel. Thanks.

[@RedBeardsGarage]

Welcome!

[@teflondon1620]

first time watching.. u guys are pretty cool. earned my sub bro

[@frankcastle7777]

Thanks for the cool videos and GOD BLESS you too man.

[@TimZ007]

Note the Yellow spring on the rear driven pulley. if it inward facing it would be a red spring. They usually come with red springs but tend to have more clearance when run this way outward. Not an issue with the kit but I have always made my own jackshaft holder for the rear driven because i am cheap lol. Its a pain. and tensioning the belt vs the chain is a pain too the cheap way. always needed a chain tensioner which makes more noise and places to fail and they do.

[@rickturske4708]

I purchased the 459cc for a golf cart I'm doing. Haven't mounted it yet, but I'm super excited based on the videos you have up. The one part I really need is the exhaust header! I'm not really going away from stock except to the air intake and exhaust (due to space requirements).

[@brockueda4866]

How did it work out? A friend wants to do the same I am interested to see/hear if it was a good addition.

[@CODOutdoors]

Awesome! I'd go with the 459 just for the tourque!

[@KJRaycing]

Thank you so much for this!!!

[@RedBeardsGarage]

No problem 😊

[@nicolec7290]

Those are great tires I put them on everything I have. Carlisle all trail. All kinds of grip. & never wear out

[@life1042]

This is the coolest channel on youtube ❤

[@xscoops1]

Nice work!

[@liamdtraxxas2011]

When you went up the road and it hit the governor. I would say, it was where the cvt didn't push the belt up quick enough so it was in its lower gear for pulling off thn hit the governor and that split second the belt did it's thing and "changed gear" moved from small on the engine to moving up to change gears and gets smaller on the other end for top speed. On a scooter it has rollers in the variator pully on the engine and you can change the weight of thm witch will change whn it starts moving the belt so you're able to keep it at an rpm where the power band is for full power💯💯💯👍👍👍👌👌

[@teshuvahemmet3036]

Thanks for the information 👍🙂🙏

[@tristanmcnabb2741]

Yip after watching the two motor show down 8 times over I like the new one 459cc😁🎉👌 allsome work guys from cruzermans inventions 😁🎉

[@Tacosgalore24]

At the very least, if you're trying to cut down on wind noise while recording, for the go pro, they make a simple foam housing that does a pretty solid job of cutting down on wind noise. Or if you're handy with foam carving, you can make your own for cheap. It's not one of those items that go pro really advertises, but it's worth trying out

[@charleshatmaker4425]

Great job thanks for sharing 👍

[@RedBeardsGarage]

Thanks for watching

[@cportmikesautomotiverepair1355]

Omg love it good job bro

[@Vanhornsby]

Found this video while searching for engine replacements for my sons go kart. What a great video. You do a really good job of demonstrating what you're talking about. Question: will the 420cc Predator fit in my sons Coleman KT196?

[@deborahchesser7375]

Can’t wait to see the Vtwin on the cart, it should really boogie

[@carlosg1165]

Love the low end torque on the new engine pluss pressure lubrication is way better

[@pancudowny]

As I've said in another video, where the 224 & 212 were compared: I'd say the torque curve was the deciding factor in the results.

[@caseymoore9737]

And the reinforced block is huge, pretty much puts it in the same class as the tilotson

[@grunt11bs66]

224 has a plastic cam gear

[@drakrazerclaw5146]

I'll be getting a 459 after I wear out the 390 I have, hopefully more will be available by then.

[@mkuhlman77]

459 because it's already in my shed waiting for better weather. Yeah boy!

[@kaseyrose4845]

Can't wait to see it turbo'd

[@trumpfancardanostakepool4737]

These comparisons are excellent.

[@ahmondeboxley2950]

Nice video and review do offer any service or builds on go carts'

[@johnhicks9529]

It's A good videos. I would use either one just cause I'm A little bit of A wrench.& gear head myself on things like those to.

[@GodschildinNC]

like the rims on both the cart and the duece

[@way2g619]

Awsome video

[@bryduhbikeguy]

That just looked like fun rides regardless to the engine.The 459 seemed to really pour on the torque earlier though.

[@ElPatronGamefarm]

I wish you guys would do some crazy gy6 builds

[@tonytrv]

Just added a 459cc on my Trailmaster!

[@hueydaboss1870]

Haha I need a blue berry go kart for my blueberry farm!😂

[@cnance1972]

Heck I'll subscribe for Grayson !

[@erikrohleen339]

Driver is on backwards…. Which people tend to do on the 40 converters. This is mentioned a few times below in the comments and is true. The driver is fine to be mounted “backwards” just shim the driven to line up.

[@earlhouse4458]

I see that you buy the same band-aid's that I use! Blue shop towel and electrical tape!!!

[@mikesbarn1858]

I bought a 420 and cut down the crank shaft for my generator. With more hp it will start my furnace now. The 459 would be better but wasn’t out when I did that. I did install a billet rod in it before I put it in.

[@RedBeardsGarage]

Nice!!

[@Mikeofindy]

On the surface, I wouldn’t want either one for my kart. That cart was creeping through the woods. That’s the kind of power for maybe an 11-15 yr olds. I do understand the video for the sake of comparison and thanks for that. I freaking love your channel

[@RedBeardsGarage]

Glad to have you here!

[@jgavinray]

What go cart is featured in this video? I see Maxxam decals, but would like to know if your willing to share. Wonderful content!

[@joeybobbie1]

Great Video, I think you definitely need to get Rid of the Governor. I have a Brand New 420cc Predator Engine that has sat in my Garage for 3 Years. I need to find a Go Csrt Frame for it. I would love to find a old Honda Oddesy Frame. I would also like to buil up the Engine. Thanks for the Video.

[@str8xrippin]

I'm building a 2 speed 440cc big block cvt mini bike, should be one hell of a ripper

[@tonyestvik7969]

Nice work! 459 cc 👍Can I use my CVT- 30 plate for the 40- series?

[@uptighthippie583]

Awesome 👍

[@landonpope7522]

I just bought a 459 yesterday It's going in my ez go gxt-804. Glad i saw this video The original 2 cylinder in the cart was terrible. Best way to run a pulse pump?

[@whopper2king]

Intake spacer that has a pulse inlet on it

[@loosescrewlab3605]

know what im goin to be savin up for!! 459!!

[@andresavalos3911]

SOMEONE GET THIS MAN A DYNO!!

[@Dr.Cypher]

What torque converter do you recommend if I will eventually upgrade the 459 but don't want to buy 2 converters.

[@aliessi]

Awesome video! I do need some help is there any way to contact you to run some ideas by? I’ve got a Manco 606 and I just purchased predator 459 today. It was previously all stock with a Suzuki 169 cc in now I need a new engine mounting kit/plate. Do you know where I can get one?

[@graygunter698]

Also got the 459cc 2 days ago for a gy6 cart with blow 150cc gonna take a while to get this done but should be a blast in the trails for a free cart givin to me and a 500$ engine

[@scoc253]

_i wanna see some stiffer contra spring and lighter rollers then test it again._

[@alexm2866]

Can you do a video on the gas tank delete for either the 420 or 459cc?

[@jesseshelby4383]

That's one Shiney blueberrie with them wheels on it 😂

[@RedBeardsGarage]

🔵✨ Yes it is!

[@patchouli3422]

Now the real question is how the 459 compares to the Duromax 420 and 440.

[@JoshPhoenix11]

426 Hemi 😆

[@PatTheBaker855]

Dang i wish i could find a little cart like that.

[@TheBiggestRedneck]

Lonnie’s Go-Cart Looks Sick But I’d Put Different Tires On It

[@dyllongeckles2122]

This video really surprised me. I used to have a little 1 seater with a bone stock 212 on it and the governor shut it off right around 40 and it had about the same acceleration as the stock 420 on that cart. It's crazy to see how big of a difference tire size, weight and gearing can really make with these small engines. I'd love to have that 459 on my old go kart lol

[@igokarts4510]

"it's crazy to see to see how big a difference...." ❤️❤️❤️ ❤️

[@Nitewatch-xc9yz]

Like to see if the 459 would be a good choice for my super Bronc mb

[@jamest.5001]

You should build a Dyno! You can use a motorcycle disc brake, or a large car alternator, or two, with the output shorted through a heating element, in water. and the brushes powered by a variable power supply, to vary load, the brake disc is the most simple,. And then a load cell and laptop, robot cantina has one, you should build one, or a large water pump, with a valve to restrict flow. About anything that will put a steady load on the engine, that will not overheat.. then you can make videos testing parts on engines for gains! Seems like someone mentioned a diy open source kit or something, to build a Dyno, then you can truly compare these engines!!

[@bradleyward285]

Can u see in the future? He's got a dyno now

[@rangerdanger126]

Hi RBG, just wondering if your still doing any projects with the 459cc? I'm using mine on a long tail mud motor. Been working ok for me, have heard some are saying their mud motor setups with the same engine are bogging down. Is there any performance upgrades you recommend. Anything you would not do? I know for my purpose do not disconnect the Low Engine oil sensor. Thanks Rangers... Lead the Way!

[@burtmoore2101]

Smaller wheels in the rear would just rip rooster tails! Nice job fellas 👍

[@RedBeardsGarage]

Thanks 👍

[@johnhicks9529]

Try changing the Jets out to smaller ones you'll see A difference in the power.& speed gain to.

[@SlaxFS]

So I have twister hameerheqd 150cc kart and was wanting to know the size of the front tires and maybe what battery to use?

[@ezmac622]

Now I have to get one, LOL

[@johntingle455]

Have you considered buying or making your own Dyno to test all your built engines?

[@pedroaguirreg4178]

Tengo un motor 420cc ,me gustaría saber si es muy débil si se trabaja con un centrifugal clutch y que tan potente puede ser ??? Me gustan mucho sus videos ,un saludo desde Costa Rica América central 💯💯

[@caseymoore9737]

I'd love to see you guys use more Chinese multiple cylinder engines like from ali express. Or the bigger Chinese buggies with 1000cc

[@RedBeardsGarage]

Great suggestion!

[@samuelcurtis5374]

RBG How did you get those size rim and tire on there? Is there a video. I have a Chinese go cart and the rims warp and twist eventually cracking.

[@MoneyLoaf]

I have a Briggs and Stratton engine on a go kart I think it’s 10hp not really sure but I’ve been trying to get it fixed it has a stuck valve I need to fix and it should be running after I get that fixed. My grandpa gave it to me and he said it was a fast go kart so I’m hoping it runs well

[@jakethesnake1023]

This made my decision for my manco 710 lol. 459 seems like a much better deal for a heavy ass cart

[@Cam_Bass]

Will performance parts for the 420cc work for the 459cc? Air filter, jets, exhaust, ect?

[@TheClintmeister]

Lonnie needs a "test pilot" suit!!

[@bryduhbikeguy]

The way he was bouncing around in the trails,I'd say blue and yellow checked...

[@RedBeardsGarage]

That's a good idea! 😂

[@gavinvetor5450]

Do you have to have the CVT and if you don’t will it make it a lot slower

[@daveschwartz9447]

domed washer also called Bellville washer

[@mikebaker833]

Would this be good replacement for golf cart that needs new engine

[@dustinjohnson2116]

Do you have to buy the torque converter Cvt kit or can you buy the motor and set it up with out it. I have a go kart that has a old 10hp robin subaru with the torque converter

[@afarley17]

Where did you get those rims and tires?

[@shannonrickman7620]

Please do a 440 duro max comparison to the 459

[@davidmed9133]

what engine would you sudgest murray hard drive with 22 inch tires in the back and what size sprocket please

[@kroozin5]

Hello do u have any videos on a crossfire 150 with this type of motor installation

[@g576758]

I have 2 420cc engines I did see those Dromax engines in the background what's your opinion on them are they just as good

[@travispuariea4798]

Should test out the lct 414cc. Mine makes my homemade kart go at least 40 geared down with all stock motor...

[@str8xrippin]

You can definitely got 60 with a 414

[@caseymoore9737]

I liked my built 212 compared to my 420 which had stiffer springs and 34 mm mikuni just for the fact my 212 had the black mamba can and never stopped revving up, pretty sure past 10,000 rpms. Wasnt as fast off the line but would smoke the 420 in the long run

[@str8xrippin]

But after 100 miles non stop your 212 would blow up and my 420 would be running without a problem.

[@caseG80]

@@str8xrippin how often do you go 100 miles nonstop on one of these?

[@str8xrippin]

@@caseG80 I don't know about you guys but pretty often for me, thats why I'm building a street legal 440cc 2 speed bike that should do more than 100 mph and cruise around 70 mph just to keep up with traffic. What I meant with that comment tho is after a long distance it doesn't have to be 100 miles I was just making an example of a long distance. Those 212cc run good but push them a little hard and it'll crap itself

[@jamiemartin6967]

I’ve got a 2012 John Deere RSX850i side by side motor is junk comes stock with 62 hp I’m thinking of fabricating a new motor that’s more reliable not really needing the speed but reliability is a must any recommendations?

[@181dude]

does the belt get slung with these engines? considering the cc of the engine is higher than the rating of the torque converter

[@yeagermaster4450]

What kind of engine u recommend for a 4 seater go kart the original engine seems to weak I want a little more power

[@Nothingmore71]

For a large pressure washer you think it would be worth the extra money for the 459? Or just stick with the 420 I’ll definitely be pushing the limits of a typical 13hp engine with the pump I’m going with.

[@danielfarmer2097]

Putting a 420 on my yerf dog. Any suggestions or things I gotta look out for??

[@tjstrain280]

I acquired a brand new predator 420 engine from a generator, but it has a short stubby tapered shaft on it. So I’m thinking I need to replace the crank with a 3 inch keyed shaft. I am eliminating the low oil sensor, and the governor since I have it apart. should I upgrade the crank or do other performance mods since I have to buy a crank?

[@bobbyshaw6831]

55mph on flat ground in my 95 Geo Metro with the 459 in it.

[@Dr.Cypher]

Stock?

[@taylor1722]

could i stick a snowmobile engine in one of these??? im looking for a beat up frame like that since i already have a couple of sleds with reverse.. juts wonderingg how much engine space theior really is