The 4 Best Mods for the 4.3L Vortec!

[@tarwashsomeonestolemyhandle]

Retired my 01 S10 ZR2 daily driver/work truck while it was still in nice shape. Not looking to build a tire shredder, but an extra 50+ hp would be fun. I'm building a parts list to throw at it this spring. Rebuilt the front end last summer when I found a bad cv axle. Always looking for informative vids such as this one. Thank You

[@8020Media]

T - Thanks for the feedback! Keep us updated with your build.

[@David-u5f3v]

Get the newer LV1 or LV3 4.3l V6, close to 500 hp with a cam and lifter plus spring change, stock bottom end.

[@8020Media]

D - Well said.

[@tgn_peppery452]

where do you get the cam?

[@vtec18c]

Yes, which company provides these upgrades

[@decibellx2194]

one of my fav engins.

[@8020Media]

D - They certainly can be great!

[@C0rvette454]

The lv3 is a monster tho especially with a cam, exhaust and tune

[@8020Media]

C - Well said!

[@moldetaco2281]

i mean i dont mind a tune and exhaust. my question is that does it make a difference? like will that 25-50Hp gain be noticeable or will i sepnd the money being dissapointed. cuz if im going to be dissapointed i might as well saved that money for a future 5.3 swap.

[@8020Media]

M - I mean it'll be noticeable, but if you're saving for a 5.3, then we'd keep doing that.

[@Likelyquasar468]

Do you have any recommendations for a catback with a 99 jimmy?

[@8020Media]

L - We don't have a recommendation honestly.. Not a ton to choose from.

[@Fortnitepro7516]

do they make long tube headers for a 2011 silverado? 4.3

[@8020Media]

F - They should! May be more difficult to find however.

[@FernandoGarza-t3r]

I have a 2007 Silverado with a v6 looking to see if they make after market cam kits for it I have tried looking but o luck

[@8020Media]

F - We can take a look.

[@dieselhartsock853]

Same haven't found anything, been looking for a good one for 3 years

[@firefighteruppy9121]

Check out Scoggin Dickey... they've got a video where they dyno test 3 different cams on the LV3

[@turkeyboyjh1]

What size tires? How heavy is the truck, auto or manual?

[@sartainja]

Have a 2007 Sierra with a V6. It does not have any power on the highway. Anything above 65 miles per hour is turning 2500 RPM and sucking gasoline. Had a few 4.3L V6 S-10s back in the 1990’s that would run like a stripped arse ape but not this truck. You do not have to worry about getting a speeding ticket in my truck.

[@diamondboy3456]

What type of cams fit for the lu3 cause when I search for them on google usually just v8 cams show up instead mocking me 😂

[@8020Media]

D - What are you looking to do? Aftermarket?

[@diamondboy3456]

@8020Media I just want a little extra power nothing to crazy I drive it daily

[@8020Media]

D - Don't think cams would be worth it if you're just driving it as a daily driver. Typically aren't cheap.

[@diamondboy3456]

@8020Media that's cool with me I guess I kinda want a cam that can work with the stock internals, I just finished paying off my truck and got a few extra hundred bucks now and then to splurge

[@davidrussell6891]

@@diamondboy3456we in the same boat I’ll still cam it even tho I daily my 4.3 s10

[@edgarramirez7282]

I wanted to cam my 2003 4.3 v6 but I don’t know where to start or what cam kit to use, I don’t want anything crazy since it’s my daily but what do you guys recommend?

[@8020Media]

E - Would that be your first mod?

[@edgarramirez7282]

@ yes that would be my first mod

[@8020Media]

E - The problem with recommending is there are so many different options depending on what kind of build you're going for.

[@el_cuh2147]

@@8020Mediai cant find any mods for a 99-06 4.3 vortec

[@KillerCamino]

You could definitely build a 1500hp vortec the blocks are super strong and they are 2 bolt mains so you can get splaid 4 bolt mains to put in the cranks cost alot tho they were $2500 for a stroker crank when i put one in my elco im probably making 400ftlbs of torque to the wheels and probably about 320hp the vortec heads are insanely good for torque i have issues lighting up the tires and i have the elcos stock gearing in the rear (2.56)

[@8020Media]

K - Don't know if that was a typo or not. Are we seeing 1500hp..?

[@KillerCamino]

@8020Media yes I'm sure a stock 4.3 vortec block could make 1500

[@RickyTristn]

Which catback exhaust system will work for me , if i already have short tube headers and a high flow catalytic converter. 2001 Silverado

[@8020Media]

R - There are a lot of options out there that all depend on sound preference. Hard for us to say which would be best for your setup.

[@rickdunbar2319]

Getting rid of the fan and clutch and replacing it with an electric fan will free up 15hp and 2mpg.

[@seriouspowerwashing458]

Throttle body replacement..remove the defuser 10 to 25 hp gain

[@8020Media]

S - Thanks for the insight.

[@virtualomen3022]

A huge question for me would be, do you trust those plug-in tuner chips that fit into the scanner slot? I probably wont go that route, unless im just being dumb and thats how youre supposed to do it

[@8020Media]

V - There's many ways to do it. If you don't trust it, there's other routes out there. No reason to for yourself into getting one.

[@virtualomen3022]

@8020Media ok thanks, I have a 08 1500 sierra WT that I just need a little extra juice with haha, feels like I'm driving a semi when I'm hauling a trailer (yes under weight) and I don't really want to engine swap it. The current truck market in my area is way too inflated so I'm not trying to buy a whole new truck but 🤷‍♂️ I'll try your tips and see if I can be satisfied 😂

[@8020Media]

V - Keep us updated!

[@plague-wv4rm]

Theres only 1 answer , if you have a 4.3 it can be fast but never will be until you fit a cam.

[@8020Media]

P - Correct

[@shanecarstensen926]

Is the l31 the same

[@8020Media]

S - The L31 is a 5.7 Vortec. Mods are different if that's what you're asking.

[@shanecarstensen926]

​@@8020Media oh shoot I just tried to look up witch 4.3 version I had it's in a 2004 blazer zr2 4x4 trying to get some nice daily mods that wake it up a bit it already has no cats and duals to flow master proflow

[@8020Media]

S - Keep us updated with your build!

[@josiahhein6036]

The real answer for power is just LS swap it 😂

[@8020Media]

N - I mean, if you have the budget, sure lol.

[@ianlucas6444]

Nah lmao that's what everyone resorts to I wanna build a badass v6 lol

[@Journeyman-Fixit]

V6 build is the way to go.