Boosted 4.3L V6 Makes Over 500 lb-ft On The Dyno! - Engine Power S9, E8

We crank up the power on our old-school GM 4.3L V6 with some turbocharged forced induction.
00:00 - Intro
01:00 - Build Overview
02:00 - Building The Turbo System
15:00 - Dyno Pulls
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PARTS USED IN THIS EPISODE:
Duralast: Duralast Gold Alternator
More Info: pntv.us/pn_pt_20523_62714b1c8ff3f
Holley: Holley Super Sniper Stealth EFI
More Info: pntv.us/pn_pt_20526_62714b79867d2
Matco Tools: MATCO Tools are the Official Tool Supplier to Engine Power
More Info: pntv.us/pn_pt_20527_627d200790d0e
Summit Racing: Edelbrock Performer Intake Manifold
More Info: pntv.us/pn_pt_20521_62714ab4a1ba7
Summit Racing: Quick Fuel Carburetor
More Info: pntv.us/pn_pt_20522_62714ad4e9e59
ARP: ARP Fasteners
Matco Tools: Matco Spiral Flute Step Drill
Sunnen Products Company: Sunnen SV-15 Honing Machine
The Industrial Depot: Tools, Hardware, Shop Supplies

[@PowerNationTV]

Watch the build here: kzbin.info/www/bejne/gZvCaZKpp6t1gNk

[@kc3747]

👺👺👺⏰⏰⏰⏰⏰🎚🎚🎚⏰⏰📀

[@Thelongmanable]

*_Where are the BRODIX HEADS OR the aluminum gm performance heads?????_*

[@Thelongmanable]

*_No hate but HOTROD magazine gave out the blueprint and built a 500hp naturally aspirated build of the 4.3..._*

[@Thelongmanable]

*_158-1601000

[@Thelongmanable]

*_12 PSI AKA BOOST VIRGINS!!!!_*

[@vegeto186]

I'd love to see more v6 builds. A buick 3800 series 2 with the m90 supercharger would be so cool

[@anthonyholleran9378]

Yes!!! .... the sequel!!!

[@edim108]

Those turbocharged 3800 did hero's work in Grand National and the like. They are fantastic engines!

[@cr500_conversions]

Absolutely!!

[@MrCaprinut]

Yes more V6 stuff please! Would love to see a Ford Cologne V6 build myself.

[@cr500_conversions]

@@jims4877 2.3 quad4 😁

[@robm3357]

I have had many 4.3 service vehicles and I beat the hell out of all of them. Max RPM, wide open pulls from every traffic light. Never an issue never burnt oil. Even after 200,000 miles. Great engine…

[@DeathhAngel1]

The LU3 4.3?

[@samholdsworth420]

@@DeathhAngel1 L35

[@samholdsworth420]

My blazer has 263k on it. And it just passed a smog check in California...

[@davelowets]

You got lucky.. The mid 90's service vans where I worked for years all burned oil, and started falling apart around 125,000 miles.

[@thsarethbreaks]

I have a 1992 s10 4.3 shortbed that has 240k original engine and trans. It is still capable of doing the second gear wheelspin and chirp.

[@basstech714]

Really great job on the old 4.3. They are good engines when done properly as you’ve demonstrated

[@PowerNationTV]

Thanks for watching!

[@jmaxim80]

I agree completely

[@davidgalea6113]

personally I judge all engines by the hp per cubic inch that they make...

[@square348apple3]

@@davidgalea6113 reliability needs to be considered

[@shadowopsairman1583]

What Engine RPO? Because LU3 was their best

[@BeefaloBart]

Frankie is turning out to be a great addition to the team. The more he is on screen the more he loosens up and acts more natural.

[@FrankieJames7]

Thanks

[@Memerino-ly7yr]

@@FrankieJames7 oh damn you are THE frankie

[@phantom0456]

FrankieStein puttin his nhutz on da 4.3 Turbo chin!!!

[@lanegeisewite1436]

Bullet proof 4.3!🇺🇸🇺🇸💪💪

[@taylorrodgers8988]

Please put it in a first gen S10! I would love to build a similar setup out of the stock 4.3 that is in my truck.

[@thewhomphlew]

Nah that sucker should be in a boat.

[@HeadFlowInc]

We found out somewhere between 600-650hp the factory crankshaft is the weak link. We bent ours .004”, just smeared a main bearing which was very lucky it didn’t break. The Bad news, nobody makes an easily available forged steel 4.3 crankshaft and the limited production NASCAR crankshafts are $2800.00+ 😳

[@undertow2142]

There really should be a better tuning market for these 4.3s. So many of them out there.

[@supersevenn]

2800 for a forged crank is cheap !!

[@SyTySpeedShop]

Actually there is a 3.6 stroke forged evenfire crank available if you know who to talk to. $2K shipped.

[@dposcuro]

@@undertow2142 So many of them available, because the general thought is: Why bother? Anything the 4.3L came in, a V8 practically bolts in. So...people go with the V8. It used to be that people would drop 4.3s into old Jeeps, but even that is kind of run the path and people just go with an LS. There never will be much of a tuning market for the 4.3L, because there isn't enough people interested in supporting it. Sure, there's a few thousand people who really, _really_ like the 4.3L, but a few thousand isn't enough to build a competitive market around.

[@2kbaby924]

@@supersevenn no it’s not😂

[@bradleyj.fortner2203]

00:52 - Pat's lost weight. Lookin' good Bro.

[@reviewaccount469]

Its sure a stark contrast to just a few videos ago. Hopefully it was a voluntary choice for health, and not sickness. If it was his choice, then I applaud him!

[@OOOGrey_Bush]

I've been following this build and I love it! This is almost exactly what I've wanted to do to my 2006 short bed Silverado. It came factory with a 4.3 and there is plenty of room in front of the motor for twin turbos if you are feeling that froggy! If you need something to throw that in let me know, i'd offer up my ride for it, lol!

[@RogerSegerJr]

Twin compound turbos would be sick

[@jimthomas777]

Stephen , I have that same aluminum 4 barrel intake and long tube headers , If you are interested , Both are brand new and still in the box , I ended up going with a small block Chevy V-8 , 350 with a Turbo Trans

[@DwightKShrute]

@@jimthomas777 I also have a 2005 ,single cab short bed sitting currently. Have bought new fenders, bumpers , plastics , lights, rockers, etc. And the 500 dollar raptor bed liner kit that I'm putting over the entire truck. Have the frame stripped and recoated, am replaced 100 percent of energy bolt and suspension component so far. I can't decide to build a 4.8 and swap it, or keep the 4.3. lmk what your parts are worth of you still have them. Peace

[@i_am_wi11_]

Lol I have a 4.3 2006 GMC Sierra.

[@i_am_wi11_]

@@DwightKShrute pics of the raptor bed liner on the whole truck ?

[@terryduncan31]

I've owned several vehicles with the 4.3 and they are super reliable little workhorse engines. I knew they were tough but this really sealed the deal!

[@Project-gr6zy]

Should do a sustained load mpg test, lug em down at 2500 rpm and see how the gm 4.3 does vs the turbo 300

[@GLepage74]

Good idea!

[@gregbrightwell4682]

Why? That seems boring as heck.

[@Project-gr6zy]

@@gregbrightwell4682 because these there are people that would want to see this too as some of us want to be able to have fun and have good mileage too

[@gregbrightwell4682]

@@Project-gr6zy Like a lot of people...I too enjoy having good power and good fuel economy. I just don't think it will make for exciting television. Because firstly, this is a broadcast television series. Once it gets boring...it will be cut.

[@Project-gr6zy]

@@gregbrightwell4682 it would be entertaining still because its one things thats different

[@jimparker7778]

My neighbor and I both bought new 1988 S-10s when the 4.3 first showed up on dealer showrooms. His only lasted 100k miles and his friend rebuilt it and stuck a Holley 4bbl on it. Not for performance, just drivability. My 1988 ran like a champ into the 180K miles and I sold it to a buddy. He drove it for years. Those were great motors in their day. The V8 in my Silverado has been amazing. Fifteen trouble-free years and counting.

[@irishhellcat7079]

I could only dream of having this kind of 4.3L in my 1993 Jimmy. I know I could make it happen, but that Holly super sniper...imma keep my eye out for that, the 'spider injectors' aren't the greatest and the plastic clips don't last long, especially with constant heat. Amazing build...and outstanding numbers👀🤤

[@JDMsubaruGuy]

There's always the Mercruiser 4.3L marine intake manifold that uses rail injection too

[@jedidethfreak]

"It only needs one thing - more power!" >Donut has entered the chat

[@rhubarbpie2027]

MO POWA BABEH

[@theredyota6834]

Cue the Buff Horses 🐎

[@jedidethfreak]

@@theredyota6834 LIGHTNING! LIGHTNING! LIGHTNING!

[@DrewBe59635]

Still looking for ya'll to put an Iron Duke together.

[@cobrin6437]

You even had me on the edge of my seat in Australia...lol nice work guys, that was fun.

[@enzos9211]

My 87 one owner 4.3 went 475k miles and i never opened the motor up or had any issues besides a leak from the oil pan gasket. Awesome motor plenty of power super reliable never left me stranded

[@michaelbrinks8089]

🤔 You never had to change the transmission, water pump, heater core, ignition module,new oil pump, etc..? After 200K on my 93 4.3, I could feel lower compression. It'd have slightly more power on each 3000mi fresh oil & filter change. Then get weak after the new oil had about 500 miles on it. The truck rotted away before the engine did. I'm guessing had I checked for a weak oil pump & changed it & ran 10W40 in summer instead of 5w30. Once worn, it would have gone to 300K.

[@enzos9211]

@michaelbrinks8089 when I swapped the oil pan I changed the oil pump because it was damaged from the impact. Replaced water pump once, ignition module, and ecu. Along with the alternator a few times. Thats expected wear and tear from daily driving it. transmission I rebuilt it three times. Third time I went with an art carr billet everything in it stage 3 meant for grand nationals with up to 1000HP obviously I wasn't making a quarter of that but I did it for longevity and the 24 inch forged wheels . 10 years later I refreshed the tranny and still going in another MC SS . I always ran 93 and full synthetic Mobil one when it was good oil back then

[@enzos9211]

@michaelbrinks8089 I bypassed by the heater core in the 90s since I'm in miami we don't really have cold winters also I've owned the car since new 0 miles my dad purchased it back then

[@michaelbrinks8089]

@@enzos9211 475K is impressive...I think the combination of warm Florida weather & regular oil & filter change using full synthetic was the key....Many people who hear of a vehicle going/lasting 500K miles. Think that means it went 500K with nothing msjor bresking. They don't realize it's engine internals only & it went through several external parts & a few transmissions. I wish I known when I was younger to replace the oil pump around 100K miles. Or when you see the oil psi is lower than norm at idle. The oil pump us still working but lower psi= isn't circulating as good. So the combination of high miles & low psi is wearing it much faster than 50K with strong psi circulation.

[@PatientXero607]

262 HP. Nice! 1HP per cubic inch. Not often you see an older iron V6 do that. These originally made 190'ish HP.

[@dirtboater1]

My '65 Corvair 164 C.I. turbo makes 180hp factory.

[@davelowets]

Not quite... It's a 266 now.

[@tomknud]

Neat to see my beloved 4.3l hopped up and tested. Thanks

[@jaxsonhugh9334]

Pontiac Fiero GT V6 Turbo……….OHHHHHH YEAH

[@OzarksWildman]

Dang! That little six cylinder makes as much torque as my turbo diesel V8.

[@dk832002]

If you think that's good, check out the new lt based direct injected 4.3

[@markrich3271]

your diesel should be making peak tq 4000 rpm sooner and with a tuner would double that tq number easily even if you had an old 6.5

[@gumballer133]

@@markrich3271 Do they have much for aftermarket parts for an old 6.5? I'm not a big fan of diesel performance, but I still read about it

[@bobbymartinez3030]

@@markrich3271 mmm 6.5 is pushing it 🤣 think they have a peak tq of 400 or something

[@markrich3271]

@@bobbymartinez3030 I did say with a tuner . I had a 6.5 . It was my first diesel . It was a real dog. Great on fuel though . I now have a compound cummins and I also have forged turbocharged 383 sbc. I would never use my turbocharged small block to tow a 20k load . Point of my statement was its not what the peak tq is but also where in the rpm band it is . Every job has a a tool best suited.

[@srow1212]

That engine would go great in a Chevy Astro or GMC Safari. It would be a beast.

[@stevewade3313]

I had 2 Astros when I was in high school one had the 4.3l high output engine. I love a good van build.

[@davelowets]

My buddy had a sweet lowered Astro with a killer paint job A 406 small block in it was WAY better than any V-6 could have been. Only thing we had to do was slide the V-6 motor mounts further forward on the frame, and it was a complete bolt in. The only issue after that was blowing the rear-end several times, and absolutely shredding the rear fiberglass leaf springs until they looked like a grass skirt, or a wooly mammoth.

[@weaselduke]

Wonder if the transfer case and locker in my 03 Astro would like this setup....or a V8 swap for that matter. I promise I won't launch it. Whoah, 525 ft lbs, that's a lot o horsetorques.

[@davelowets]

@@weaselduke I think it would, if you kept any high traction/high torque equations out of the picture. I had a 1990 Safari AWD, and I replaced the 4.3 V-6 with a stock but completely fresh F.I. 350 V-8, and I beat the livimg shit out of that thing and hurt nothing but U-Joints. Go for it!

[@214oc9]

Finally somebody does a 4.3 V6

[@JBAutomotive794]

Pat has really grown on me. Love that they are showing more of his silliness lately. Still miss Mike Galley tho 🍻

[@projectinlinesix]

You guys really had fun with this one! Cool build, and cool content!

[@shinymud7]

Frankies come a long way in a short time he’s been with you folks and us. Good job Frankie I’ve already learned stuff from you :-)

[@nedaCFilms]

The 4.3 Vortec is such a great engine ❤

[@MrArrakis9]

so glad you guys finished this project off with boost! been waiting for this one.

[@JONMEREDITH]

WOW ! Outstanding build! You guys just changed my opinion of that V6! Thank you for a fantastic video!!

[@dwightkeen5160]

Thanks for doing this production! I always wondered what a 4.3 could do if built right with a power adder. I very much enjoyed it!!!

[@Doing_it_right_the_first_time]

He’ll guys, I built a 4.3 many, many years ago for my Buick Grand National. Dual turbos at 73 mm each and I put my alternator and my power steering pump at the 7:30 and 4:30 location underneath my turbos with a big Ron Davis radiator and heat exchanger. Made 552 hp!… but of course, I had a steel crank made and billet rods and forged pistons with a custom (my specs) Crower camshaft. Confirmed 178 mph on route nine going from Middletown to Old Saybrook, Connecticut in nine minutes and 12 seconds but the car got light and scared the hell out of me at that speed! Keep up the good work, and dude, you don’t need that many pens in your shirt pocket! 🧐🤨

[@michaelpascual2731]

I did a similar build back in the day and keep breaking the front end of the crankshaft off right behind 1&2 rod journals never did make it stay together trying different crankshaft from different manufacturers and no one could survive the boost so I gave up on the v6 and went with the small block and had much better success with it.

[@vinceyoung5912]

Rt 2?

[@lucasperboni674]

you saw my comment in the first video and now it deserves a nice little home in a chevette!

[@loganhogg7270]

Y'all should do a vortec 4.3, it's crazy how durable those engines are

[@glenniz1]

I've been a fan of Frankie since day one.....But OMG, he's truly become a very important part of this program! His knowledge of turbo installation, as well as welding skills have truly impressed me. So glad to see him working with Pat, he's become an excellent addition to the show!

[@idkwhattomakemyname101]

I’m an LS guy that LOVES the content y’all have doing all kinds of mods to LS motors allowing us to have more knowledge going into builds but seeing boosted v6s is so cool to watch and seeing more would honestly be perfectly fine with me especially since nobody else does it! Love the content as always guys y’all are awesome

[@marcasswellbmd6922]

That 4.3L V6 is probably one of the best motors GM ever made. I had one in a Chevy pick up truck.. It's a big 6 cylinder and it has a lot of power.. GM actually made a few really good 6 cylinder's over the years.. They did a 2.8L that they bumped up to a 3.2L that they used to put in the Z24 Cavilers.. That 4.3L is about as close to an 8 cylinder 5L as you can get. I had a full size 8' bed and loaded that thing up like it was a 3/4 ton Truck even though it was a half Ton truck .. I could tow with it. GM made a yearly solid motor with that 4.3L..

[@fucksusanwojcicki]

Their N/A dyno numbers were almost exactly what a stock 5.3 vortec truck motor from 2005 makes. Pretty impressive

[@tucksmith8300]

That motor is definitely making some good power

[@qwqqwq7182]

The turbo builds are awesome !

[@damnit6349]

My 93 Typhoon is my dream car for a reason. I love it. With an MSD, decent exhaust and a few tweaks it makes 490 street legal horses. The ricers here in Caliornia absolutely hate mè.

[@algray1195]

Amazing talent and knowledge from a couple of separate generations with different points of view!!! Great respectful points of view that create AMAZING RESULTS!!! Keep it coming guys! We are all ears👂👂👂‼️

[@markboarman2067]

I have a 1988 S10 Blazer with the stock 2.8 V6. I think this would make a great project for the turbo 4.3 build. Thanks for the video series on the 4.3 Chevy V6. Your fan Mark Boarman.

[@lifeonadime4703]

That's awesome. I'd bet you could throw a set of worked vortec heads on it and a full forged rotating assembly and really get some serious power out of it. I really wanted to build a 4.3 for a long time but iv turned my attention to the l67 3.8s now. My sc Impala SS made me want to build one to put into my S10. Maybe someday I'll pull it out of the weeds and into the shop...

[@tenbears1648]

I built a 1994 4.3 V6 for my 2004 S10 Blazer ZR2. I had splayed 4 bolt mains put in it. Eagle H-Beam rods. Mahle forged 22cc dished pistons. Comp Cams 500/510 lift 270/276 duration cam. Vortec heads ported polished with 2.02/1.60 Manley stainless steel valves. 1.6 aluminum roller rocker arms. ARP head studs and main studs. EFI Connections 1x cam sync, 58x reluctor, and timming cover. Holley HP EFI ECU. Individual LS coil packs. 1992 GMC Syclone intake. Had to 4L60E transmission rebuilt to stage 2. Put a 1995 Oldsmobile Bravada transfer case and right side axle shaft and hoising. A 2002 S10 ZR2 cast iron front differential.

[@SyTySpeedShop]

This needs to be taken to the next level with 96+ vortec heads and add a 2nd turbo!! I’m building a 275 cube V6 with twin 58/55 turbos, Brodix aluminum heads and a GM crossram intake modified for EFI and dual DWB TB’s. Should be good for 2.5+HP per cube.

[@aliciaANDanthonySandoval]

That would be great in my 98 gmc Sonoma. It's a 4wd I want to convert into awd and make a gen 2 Syclone. Maybe one day... nice build 😉👍🏼

[@sebastianmuglia7451]

Yes a second gen syclone would be the shit !

[@aliciaANDanthonySandoval]

@@sebastianmuglia7451 ya I don't know why gm never did that but ya would be lovely.

[@vortecturbo]

4x4 is all wheel drive🤦🏽‍♂️🤦🏼‍♂️🤦‍♂️

[@aliciaANDanthonySandoval]

@vortecturbo All time awd and selectable 4wd are not the same. 🤫🤦🏽‍♂️🤷🏽‍♂️

[@solarflare1008]

Insane amount of power from that tiny engine 😳.

[@mplewp]

4.3 L isn’t that tiny :P here on the european continent we have 3.0 diesels with more hp and torque. Look up what the om606 and the m57 from mercedes and BMW can do :D

[@calvinbrewster4778]

@@mplewp can’t compare torque levels from a gasser to a diesel

[@xxxYYZxxx]

@@mplewp Given the same deck height, the pushrod engine will have more displacement than a DOHC, albeit with a slightly longer block. The 4.3L pushrod engine is hardly "bigger" than a ~3.0 L DOHC, rather it has more "empty space" inside the block corresponding to the higher displacement. Another myth is that 4 valves per cylinder allows more airflow, but a hemi head with 2 valves is the highest possible flow.

[@nerd1000ify]

Pent roof 4-valves are geometrically equivalent to a hemi as far as valve areas are concerned, but they can use more of the bore area. So they do indeed flow better. Bigger difference however: the curtain area increases a lot faster than a 2 valve head. This allows 4-valve heads to flow better with a milder cam, which is ideal for drivability and emissions in a street car.

[@xxxYYZxxx]

@@nerd1000ify I'm contending it's not physically possible to fit 4 round holes with more area than 2 round holes. If you're right, the NHRA would like to know.

[@designbuilddrive]

Awesone work guys, cool to see the motor running after seeing it in person.

[@scottpeters9911]

Cool viddy! And for once I can relate.., I have a 4.3 in my 2001 GMC Sonoma daily driver that I was lucky enough to buy (first ever financed, paid off early..,)in 2017. I have 99635 miles on the odo, & have replaced the fuel regulator/spider, starter & currently chasing down a service engine code P0401( secondary air system) that appears to require replacement of the check valves to clear the code & pass smog inspection.., having said all that the power has always been more than I needed & with today’s gas prices fuel economy is still holding up @ 15-18 city(whew..!). I love my truck. I am not going to beg, whine or blow smoke, just keep doing whatcha doing, I will continue to watch & enjoy!! Hell ya’ brother!

[@DymondzTrucking1962]

I know exactly what I'd put that in an early S10. A standard cab short box with a road race suspension kit.

[@samholdsworth420]

I'd put it in my 99 LT 2wd 4d blazer

[@richardschwarz7071]

3rd gen IROC or T\A GTA

[@williamgregory6684]

I would like to see you use a centrifugal supercharger on some of these builds espically on straight 6's.

[@testmcgee9230]

The 4.3 is a fantastic engine. Some years had the awful hard plastic intake gaskets that would disintegrate and create large leaks. If you were lucky they’d leak externally. If you were unlucky they’d leak into the valley.

[@70_Torino_Guy]

Hell yeah! I've always wanted to see this buildup in a project.

[@melhormecanicosorocaba]

Os cara são brabo , topzera

[@mikemyers3174]

No Mamés

[@RubyRoks]

I'm loving the V6 appreciation run. Any possibility of doing builds for Mopar, Ford, or Foreign V6s like Toyota?

[@Ozarkprepper643]

I would love to see what they could do with the 3.9 Magnum. I have a turbocharged 3.4 in the tundra. Oh yeah. I watched because I I'm considering a turbo for the 4.3 . It's also a stage 2 build with lighter rods and pistons connected to a scat lightweight crank. Port matched Performer heads, and dual plane with a 650 double. Also has a manual 5-speed. It lives in a 75 Toyota Celica At around 130# more than stock I have more than double the horsepower now. But.... 4x ?

[@jackdaniels2657]

Duralast will never last

[@petersdraggon]

Excellent build up, quality work guys.

[@elreyyakko]

Wonder what 96+ vortec heads and edelbrock vortec swap intake would have made na on that.

[@InnocentMiscreant]

I'm sure the crank shaft appreciated yall stopping at 13.8 psi

[@Pedrofitbulls]

It will never see 13 on the road tho

[@EGGINFOOLS]

I ran 15psi on a totally stock internal (besides cam) 4.3 for 4 years and I beat it hard. What let loose was the timing chain.

[@uglymechanics6599]

​@@EGGINFOOLS do you know what it made for power? was that on pump 91?

[@EGGINFOOLS]

@@uglymechanics6599 I ran 93 and 94. Sunoco here used to have 94 then. I made 470whp but I had other things done too. It was all on stock rods, pistons, crank etc.. From a L35.

[@uglymechanics6599]

@@EGGINFOOLS I'm wanting to get 400 rwhp on pump 91 but hard to say if the fuel will allow. Going to cam it which will help but don't know how safe that'll be

[@mikef-gi2dg]

Mounting the turbo on a bracket bolted to the head was a slick move, takes stress off exhaust pipes. That makes a custom turbo a lot more do able. I might have to take a look at this setup again!

[@jaylestingi5418]

This was a great episode! This is like a 4.3 Sy/Ty motor on the cheap. Everyone is starting to navigate to the "Ameribarra" Vortec 4200 inline 6 because completely stock--stock bottom end, stock valve springs, hg, pistons/rods, they've been known to hold 800-850 hp which is amazing but these old 4.3 make terrific budget street motors. If I had an old S10 or S15 Jimmy, I wouldn't be so quick to throw an LS in it. I'd build up a solid bottom end on one of these 4.3, send the heads to get ported, size an appropriate turbo and let it eat. 600 streetable and reliable hp shouldn't be out of the question plus its NOT an LS!!

[@bigpeteswackshack4237]

The 4.3 in my Blazer has Ober 370,000 miles. Some tlc and it runs like a champ. I'm convinced this is the most durable motor to ever exist

[@sschevmale24]

And 2.7L toyota engines

[@dmitry92203]

I have a 2003 Sierra with 122k. 4.3 is shot. And I've done nothing but baby it since 2011 when I bought it. Pretty sure a failed gasket let coolant into the motor. Bad luck I guess.

[@sschevmale24]

@@dmitry92203 thats why it failed. You baby'd it. You need to drive it like you stole it.

[@jessealday8225]

Wonder what a set of Brodix heads and E85 would do with that combo...

[@theprojectproject01]

I know Holdener loves his E85 for boosted applications

[@anthonyholleran9378]

One BAD Mama Jama! I love this! Great and wonderful work Pat and Frankie! Keep 'em comin'! A real tribute to the Turbo Buicks of the 80's and the GMC Syclone and Typhoon of the 90's! : )

[@vinnycalvo4148]

This engine in a Pontiac fiero would be sweet!

[@garyrehak5336]

I’d love to see this in something strange, like an old skylark convertible 😂

[@chexlemeneux8790]

AWD Astro 👌

[@Jeffball610]

This is why I love boost and particularly turbos. When boost comes on, you get instant torque gains and it can carry throughout the rev range. I know this is not an exhaustive lesson on turbos, but the audience might want to know about wastegate prioritization for controlling boost. Not critical in this application, but imperative in keeping an engine from over boosting. I've also never seen anyone put the O2 sensor before the turbo. I don't think it would change much other than giving the sensor some positive pressure to fight against. Franky said he likes V6s more now because of this. The Ford Ecoboost is an OEM example of this working, but there are several OEMs that have done this. Straight 6s are bit more common, but 6 cylinders tend to be more harmonically balanced and smoother running. Turbos make a great match with that. Now to get you to like 4 cylinders more :-)

[@jasonstewart92fs]

Awesome build

[@fernandopedroso987]

The best program. Watch from Brazil

[@Project-gr6zy]

The 300 made 122lbs tq per litre and so did the 4.3 The 4 3 just required a pinch more boost

[@dk832002]

Did you use a tbi or vortec motor?

[@sschevmale24]

Basically same motor. Heads a bit different. Think its TBI

[@wyndmclark7235]

I've always loved the 4.3 l I have a 4.3 in my truck right now and it's a c1500

[@13JimmA]

Awesome build guys! I was thinking of putting a tbi 350 in my s10 blazer but now I have new ideas!

[@JamieR74]

Just remember the cyclone and typhoon had turbo 4.3s stock from the factory. Ive seen many of these great engines run low 1/4 mile times.as a Gn owner i prefer a v6 turbo over a v8 anyday

[@Pedrofitbulls]

Ehh i guess so v8 should do fine it does eat more

[@BigDaddy-jk6yt]

Turbo v8>

[@anthonys7534]

After owning an f150 with the 2.7, I’m not going back to a v8 either

[@Pedrofitbulls]

@@BigDaddy-jk6yt im putting two In my 390 fe

[@fredrickwalls2352]

I would love to see the 4.3 being dropped into a small car like the Datsun 510

[@rle1020]

Chevrolet Chevette would be a cool option also.

[@soulless721]

Look up the rotsun

[@soulless721]

On roadkill

[@nautilusofficial8720]

this was amazing!! love v6s are getting attention

[@shadow7796]

A well machined 4.3 is a great engine. Had a 94' and it was one of the best engines I ever owned. Always wanted to drive a Cyclone. When they drilled to far into the water jacket to add the supercharger is the only problem I remember with those.

[@albanybrian]

I had a 1999 S10 ZR2 5speed pickup for a number of years. Great truck other than not much power. I always thought a single turbo would be a good thing for the 4.3 in that platform but no kits and I did not want to try and build my own. I like what you did, great series.

[@robertdonohue3710]

Love the build. good job!

[@richwood8650]

Great job! Great information!

[@thunder_lloyd]

Love this! I can't wait to get my lil 4.3 turbo running

[@bigdaddyfarms72organic61]

Outstanding video gentlemen!

[@alconk7129]

That’s so awesome! Love the Corporate Blue too

[@PROJECT-AMBITION]

Just sold a Tacoma built on your guys show. The new owner loves it and is rocking it out west. Great build guys.

[@VHP7044]

Good pulls! Keep it up!

[@patricktheplumber5482]

The 4.3 v6 was - is bullet proof great engine best v6 I’ve ever used or driven ! I had a 1994 Chevy Astro van work van I started a plumbing business with it lol I pushed it behind it’s limits could not believe what a great little van it was the Astro van was hands down the toughest best mini van of its day ! I use all full size vans now but i was broke when I started my business in like 2008

[@richfarfugnuven6308]

You can tell Pat is teaching the kid as they go. I think Pat is a really good, patient teacher...

[@JKZ103]

Good stuff guys... doing a 4.3 to 5.3 swap on my silverado now but the 4.3 had 300,000 miles and I just couldn't kill it... you guys look like kids in there playing on the dyno. Its never work when you love what you do! Great job! Nice seeing someone mod one of the other guys...

[@jmaxim80]

So awesome fellas great work 👏

[@mattscott4387]

I have an 05’ Reg. Cab SWB 2wd 4.3L OE rebuild nightmare. I’ve replaced the Engine & Trans among $9k worth of other stuff. I did all the work myself. I want to get this truck into a much more throttle responsive 400hp-450+hp romper with a strong solid Hyd roller cam, a strong turbo, headers & exhaust, new worthy intake & most importantly a NEW fuel management system that actually works for this truck. The spider injection system sucks to say the least. I would & could really use some help from you guys. I’m $17k plus deep in a $4k truck (in perfect condition) and I’m so tired of failing with this project. And so is my wife. I started this driveway project in the summer of 2019 after it completely failed me one day trying to drive to work as it was my basic daily driver. Long story short, after checking everything I could without tearing down, I got nowhere. I ended up replacing everything single thing available. Some stock OEM parts I just can’t find. It fires up and idles fine from a cold start. It gets to about mid half temp then struggles & dies. I need some serious help. I’ve already bought a new truck. Now this is a special project truck & so will be the original engine & Trans which are sitting in the back/bed of this truck.

[@michaelathens953]

I had several of the standard duralast alternators come back dead out of the box back when I worked at auto zone. The Duralast Gold is worth the extra money, plus you get the good warranty.

[@GrandPitoVic]

Lol great content guys. Back in the early 2000s I wanted to do this in a ASTRO but I got married and the kids came lol. Now they are grown I can start playing around again.

[@lobstermittens593]

BadAstro on steroids!

[@phantom0456]

Big Pat showin the ol’ 4.3 his “OHHHH” face!!!

[@ponchorodriguez2332]

Exactly what I needed im doing the same to a super coupe 3.8 v6 swaping the m90 for a turbo! Thank you

[@johnbehneman1546]

A Totally Awesome Build

[@LDDivision]

I definitely love the six-cylinder build. I want to see a six cylinder build like you’ve not done before. Maybe the 3100/3400/3800 Chevy 60° V6 is especially since I’ve always heard that for the most part they’re impossible to make power with. So, I would like to see you guys make power with them, especially with the scarcity of aftermarket parts, potentially being a problem. And with the 3800 coming from the factory with a supercharger, sometimes that could make your choices more interesting.

[@asherdie]

That Chevy turbo V6 history goes all the way back to the 1980's youngin.

[@phillipcraggs6202]

I loved the 4.3 in my 1999 Blazer. So much torque stock.

[@toddamelio9489]

I have a 1990 ASC McLaren Turbo 3.1 Grand Prix with 175K miles on it. I would LOVE to see you guys do a GM60 degree V6 build. They used the 60degree engine in millions of cars from the early 80s to the 2000s including Camaros, Fieros, Firebirds, Oldsmobiles, Chevys, Buicks and of course, my Grand Prix.

[@GundamX8]

Your welcome to put that engine in my 2001 S10 Extreme. Its been sitting with a blown head gasket for 2 years. Very sentimental truck for me