"Magnificent Noise." Roots Blown 434 SBC from Nelson Racing Engines. Blown Chevy. Camaro 

Tommy will be 75 yrs old and still like a child in the dyno cell with his hand on the go fast lever ...

There's something therapeutic about that idle surge. It relaxes me, but also makes me want to do deranged burnouts!

That blower is a work of art. Its like a giant middle finger sticking through the hood . How it is to want...haha. Id drive this everywhere if I had the opp.

It would be sweet to be involved in this kind of lifestyle. If anyone has the opportunity enjoy it, do so while you can. No matter how bad I hurt these days just knowing I can hear that sweet sound when I get there would drsg me out of bed.

That’s bad ass. Sounds like a beast I have a 427 with twin promod 85s 12/1 compression on m1 it runs pretty good. I Had tkm build it for me before covid it’s just a cast aluminum block but I had it filled I sourced the crank from Brynt the cam is a solid roller from Bullet with mgp alumnuim rods and Diamond custom pistons and the heads are profiler 18 degree heads mine made 2.190 horsepower on the dyno at 7800 rpm they said it could had revved higher and they could had got more out of it but that it was safe there it freaked me out I was only hoping for about 1800 to 2000 horsepower and it went beyond that I’ve had my car since high school built it thru the years cage rear end torque box’s and I’ve ran 440s with it at 1.71 mph I’m hoping to push it harder maybe this weekend but I’m rambling badass engine I love cool shut like this.

That brutal throttle response, tho. Dang.

I can listen to that idle all day

tom nelson is the man. I'll take a blown motor over turbos any day

Love how it sounds at bouncing at idle ... wow !

Music to this old Racers ears! Use to run 327 chevies.. Nice. Man!

Beautiful build! Unfortunately, a NA big block would make it look silly. But if you love small blocks , this is Bitchin!!

That blower surge idle is very therapeutic...

That kind of motor has just such a classic evil look to it! Love it! I wonder what something like that costs?

man you gotta love that idle.

good to watch this old stuff, crazy now a 4cyl makes that power.

I was hooked when I saw the 572 black impala video years ago. Your team makes some brutal motors. Well done Id love your shop to build me a Blown 540 BBC Brodix motor. well done

Nice engine !!. I did a 350 SBC for a client a few years back stock bore and stroke. 7.0 - 1 .626 lift ultradyn roller 300 cfm intake 85% on exhaust and obout 10 over on the blower. Made 732 hp @ 7200 562 tq @ 5600 I wanted a reasonable amount of tq with moderate HP for the street. Had the MTs street tires 16.5 or so at 16.5 psi to make the engine start to work !. Fun to make it black track !!

That belt is just everywhere XD

that is one awesome sbc

That's is the sweets sound to hear all it needs now is a skin around it like a 72 camaro

Freakin scary awesome Good job

NRE has some very impressive stuff! Thanks for the vid. If a fella wanted one of them... what would it set them back?

Love that idle...it is so obnoxious...lol...absolutely awesome.

Bit confused, at the 6 minute 15 or so pull, you can press pause at any point and see the rpm and power on the gauges, for example the most i saw was 739 bhp at 7143 rpm, then you show it as 800 bhp ? how does that work? cheers!

what happened at 4.04 ? sounded like it was breaking up ?

what fuel pump did you use for that motor ?

What fuel is it runing on?

Beautiful wen u get a good one like this i want one please i need one like this for my streetmachine

That what i call AMERICAN MUSCLE!!!!

Hey how much do you run for one of these?

love that idle!

is this a dart block?

dat throttle response

840 hp on pump gas with minimal boost, ramp up the boost and alcohol and the hp jumps to 1100 hp

That's a Bass Ass Small Block With a Big Block Crank Very Cool

Valve float @ 7200, then 7000, and peak rpm keeps dropping the more times you run it at float.

I love it that's the blower I won't to put on my small block 400 that would be awesome

I want one of those 434's with massive head work that makes nearly 800 horse w/o nitrous. And paint it all chevy orange so its a sleeper. Maybe thread the block in the back of the lifter gallery to hide a 250 shot so nobody knows.

I like how everyone says "my NA SBC makes that much hp. Weak!" But does theirs do it on pump gas like this monster? And this is only at 9psi! That blower has the capacity to make a lot more boost than that with just a pulley change. And look at that torque curve!

how much for the motor?

I knew it was going to be a good one if it was a Nelson

love that upa nd down idle'

why does it have to surge at idle

how much is that motor?

There's something therapeutic about that idle.....

I've read that the tightness of the tensioner has to do with the loudness of the supercharger [whine], is this true?

I bet that thing is wicked af on a street car! I want

great engine

What's the price tag ?

Is blower surge relatively new? I never noticed it until six or seven years ago. Thanks.

It sounds like it wants to eat your soul

Trying to learn a bit here, I feel like this engine should make more power. Would a intercooler not help this setup? If nothing else it should love nitrous right?

Price ?

Think the turbos will pull more hp

NICE !!!!!!!!!!

I bet that scares kids and small animals I love it

Très cool

So u telling me I can convert my 350 to a 434 stroker ?

How is 434 a "small block " ?

@num1ksfan i know love to hear my truck running like that i just sit and let it idle while im working on it lol

how much do you guys charge for a motor like this??

This is how to shut up those electric car enthusiasts for good !!

0:25 What's the sound track? (Other than the shiny engine.)

If it's EFI will it be easier to stop the annoying surge idle? I know you build what the customer wants, but for the cost of a spread rail, raised cam , BBC crank you should have talked him into a BBC.....(you don't have to reply to that comment ;-)

I have a little upgraded 302 about 360 hp and it turns 7500rpm

i think i went to heaven!

That is literally a fucking monster

There's just no comparison to turbo. It's instantaneous, your foot dictates rpms.

Taz will be going mad max I think yeppers down under

Awesome raging bull

that v8 is SIIICK!!!!!!!!

i need one of those before i die!!!!!!!!!!

It seems as though billet manufacturing is gonna be where it's at!

oh, and 740 bhp at 7088 rpm too!

Kick it the guts Barry.

look at the torque curve and it is running just pump gas put that in your tank and run it then tell us the Hp.of your engine

Why can’t the blower be heard

The Blower Shop makes that billet blower in case anyone wanted to know...

Love the engines but all that money and only a SBC @ 800 hp at the crank? Thats no accesories no drivetrain. Im basically paying for the name. Ive seen budget buids more efficient and thats my opinion. Either way great craftsmanship.

seems really lean for boosted motor?? any reason why

I'd love to have one off these...I want a red eye 👁️ for lunch

434 small block????

Dang

nice but how does she run on a long raod trip? and whats the fuel mileage lmao!

Geezz. Nice motor. I got seasick and couldn't understand the narrator but thats OK.

Why are you constantly stabbing the throttle? It be nice to hear it idol.

i agree man, the lag sucks

This is probably why it took so long for v8 guys to go twin turbo. It's so freaking angry! No twin turbo engine sounds that good. !

Some of you really thought that 1000rpm to 7000rpm revving at the first of the video was blower surge? At the end of the video between pulls I could hear some blower surge but the first part of the video is just nasty blown V-8 throttle response. Turbo engines just step aside cause you will NEVER sound this nasty ever...hahahaha

Concentrate on the appearance and sound that's what these engines are about. Forget the Graphs and computer screen. If you want power and efficency then you want Nissain Skyline twin turbo 1000hp it would eat this alive. These engines are about appearance and sound. Get it on the steet in a hot rod.

i wanna put this in my miata lol :)

Hell ya

Injection is nice but nothing replaces the instant power of a blower.

Mad max forever!!, But this shit is off the hook!!.

Awesome! All that on pump gas. Wish i could afford to play with something like that. Btw. After watching this video i think i need a cigarette. L.o.l!

Do you sell clearance items hahahah

Roots-blown

Dear santa, I know It's a little early in the year, but....

wtf??????????????? damnnnnnnnnnnnnnnnnn that was a good video

Something very magical happens @ 7000 rpm~ oh ya its a MOTOR-GASM !!!!