70HP Supercharged Harbor Freight Predator 670cc V Twin Engine Build

In today's video we take a Harbor Freight Predator 670cc V twin and fully build it for boost. We install performance 670 custom grind cam, billet rods, billet flywheel, billet .020 pistons, port and mill the head with copper o ring, alternator kit, roller rockers, steel pushrods, HD valve springs, billet valve cover, AMR300 supercharger, and S&S super b carb. This engine should push out around 70hp and 70ft-lbs. Stay tuned for a dyno of this engine and see it in action on our full independent suspension custom buggy!!! Don't forget to like, comment and subscribe.

Parts Used In This Build -
Tools Used -
IRS Chassis Parts -

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Red Beard's Garage
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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.

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[timrepairs]

I was not expecting that much clarity in the breakdown and build process. Well done sir.

[Rich-hyey]

I'm frequently amazed at how mechanics can get all that back together.

[dukecraig]

Supercharging an engine like that to 70 hp is absolutely unnecessary.
That's why I love it!!!

[rachelbolyard]

Y’all gave this engine the attention that a race engine might get. Can tell y’all love what you do. Really impressive work!

[DM-wpvq]

I'm probably the 800th person to say this, but just in case nobody else did, you forget to tell people to have the ring gaps opposed and not in line with each other. To limit unnecessary blow by and compression loss. Great video btw!!! I loved it! That thing sounds meaty

[WesleyJolly]

The most amazing thing is that you actually have a 10mm socket, mine all seem to grow legs and run away!

[Qardo]

You clearly gained more horses by just removing 80% of that plastic.

[Omnicleric]

As a mechanic myself this video is a well thought out and planned explication of a how to. Hats off to you for this video as it will guide many to succeed in an endeavour like this.

[robertwest]

My goodness the amount of available aftermarket parts for these small engines never ceases to amaze!

[stanislawchalicki]

I really appreciate the amount of detail you gave whilst mounting the piston rings and all the interior crankcase bits and valve train. I could still pester you with questions about reasons for some of the procedures as well as sealing and grinding compounds you used, but you vastly extended my understanding on an engine rebuild. Thanks!

[hellomyfriends]

I thought you were going to jump right into speeding around and yelling at me about how fast it goes. But you educated me and gave me understanding and lead to the final result.

[michaelb.]

Harbor Freight owes their success to Youtube. They must've sold MILLIONS of these motors. Very cool stuff.

[BinglybertSlaptyback]

I don’t do this kind of work but I just wanted to say that this is an exceptionally well-done instructional video.

[superjusty]

Hey. Best video ever. You never see videos like this where you are walked through step by step and thoroughly explained everything!! I love it. Can’t wait to watch more of your channel. Thanks for taking the time to be so thorough!

[RvnKnight]

I'm in no way, shape, nor form a gear head, yet the way you made this video gives me the confidence that I could do this same procedure. You have earned my subscription. Great work and it looks awesome!

[someolddude]

Sooo, you basically bought a complete engine, and replaced Everything, except for the Block and maybe the oil filter. Now all you need is a block, and an oil filter, and you can make a working stock engine with all the spare parts

[Daytonaman]

This is the most detailed teardown and rebuild video - the fact you listed the size sockets etc was icing on the cake. Great job man!

[therealderjett]

You did such a great job giving us details on the entire process I feel like I just completed a full class. Thanks!

[jakeschiffe]

WOW!!!!
EXQUISITE REBUILD!!!
WOW!!! It's so rare to find a professional rebuilder like in the old days!!
Thank you, Dear Sir!
For the knowledge, and the professionalism!
I really learned so new gentle torque down tips from you!
And I thought that I took it easy.
Also how to oil the rings on installation!
Thank you again!

[markim]

I enjoyed this video, thks bro..I’m a DVET, master tech, and can’t build anymore, due to being in a wheelchair, so I miss it…nothing beats building with ya own two hands, and enjoying the fruits of labor..