Monster NA LT1 C7 Grand Sport Corvette

[@ryanbrown918]

The crazy boosted builds are cool, but big power N/A builds are just something special. An old engine builder that had a shop local to me used to say "Boost is for engines that are poorly designed, All Motor Power is part skill, part art".

[@RaceProvenMotorsports]

That dude was not wrong haha

[@z-ra]

The irony is the LS7 were dropping valves, not the LS9. But I understand where he's coming from.

[@justinwhitacre5424]

@@z-ra not because of it being a bad engine or GMs fault. It was a supplier issue with the guides and partially the valves. That said GMs valve “wiggle” test was a complete joke….

[@billbob9570]

@@z-ra woman

[@lanegeisewite1436]

That's fact. You can boost anything and it's gonna make power. Best engine builders use cubic inch or rpm N/A power

[@TheWolfMatt]

4:45 is just that priceless look of "WTF don't you understand about the shock leaking".

[@kawicepticon8866]

LMAO the stare the response at 4:51 is GOLD!!! Best stare I have seen in ages

[@dubaiboy101]

Awhhh how cute, the piston is smiling @00:13 seconds 😊

[@crodrc51able]

Gents, that’s 760hp/695lbs-ft at the crank. Motor. NA. And what sounds like a streetable head/cam setup, not something out for crazy dyno/peak numbers. Only NA motors out there that put out that much from factory are V12 Ferraris, etc. NA from factory, not power adder motors. Whenever a euro/import fanboy say that their cars output similar numbers is because of a good amount of boost thru their smaller displacement/cylinder count motors that are always on the brink. Cross plane, pushrod, 2 valve/cylinder “old tech” bigger displacement motor does it NA. And it sounds like mortar fire. 👍💪🇺🇸🦅

[@camonly849]

Man this is what the grandsport should have came with from the factory

[@davidleathersjr1486]

BROTHER THANK YOU!!!!! I was doing so much research on this exact build an couldnt find any numbers anywhere now i can proceed with this build.

[@lloydbellis7360]

A leaking shock and that stare !!!. Great build. 😎😎😎👍👍👍

[@WildEngineering]

very nice work, cool to see some more data on bigger LT1 stuff

[@lucianholbrook3966]

NA all day, Love the Grand sport!

[@Strickland21samson]

LT will never outshine LS in my book 🤝

[@Noneyurbusiness]

It would be real nasty with a blower. I love the way corvettes sound with a straight cut blower

[@scorchpowdispenser]

Yellow valve covers look so good

[@scudzuki]

Tough to beat displacement and NA for wide manageble power. Perfect for road courses.

[@ruru2500]

Likely left power on the table re-using the same cam as the 6.2L. Need more duration for the extra cubes. You can see it roll over sooner because of that.

[@C6Z_Bob]

A larger bore like that also allows for a larger intake valve which would make even more power. Obviously that would be a lot of extra money and work though. It all depends how wild you want to get with it. Still, 650 with all the same parts as the 376 is impressive

[@drewmorg.]

Wow the LT1 is a whole different ballgame from the LS with these numbers!

[@camonly849]

Ls7 was making the same power lol

[@dennisrobinson8008]

@@camonly849 Look at the rwtq...

[@dennisrobinson8008]

RWTQ was super high at all most 600rwtq ( 594rwtq ). I was curious as to what made it so high? If it was a comparable LS3/LS7 build at 427 ci with good compression and good head flow i'd be expecting 550-575rwtq and think those are awesome rwtq numbers...

[@FloridaMan-73]

Does it bother the guys in the shop while you have a car on the dyno? Especially if your making a lot of pulls or have issues while it's on the dyno.

[@mejustme1654]

About exactly what my high compression 416 in my stingray made

[@kiyalami8478]

How much more hp can you expect with a hi-rise intake (Holley or Performance Design), all else equal? And do you expect the hp curve dip below the current one at lower rev range?

[@jtartaglia002]

Matt looks exactly like the actor from the Netflix show the Tourist lol twins

[@williamlookinggoodoldguy1964]

Love the content Love Matt singing Boy George song to open the episode 😅

[@keyshawnbrown6106]

The long stare😂

[@rajahhindi3921]

Funny as.

[@calvingrover4002]

The heads had to be slightly different to go from the 376 to the 427 correct? You mentioned they were your normal ported heads. But they would have to be 4.125 bore correct? With intake valves bumped to 2.25”?

[@Greybeard1985]

No. He said they just reused the heads from the old engine. Nothing changed. Engine is probably 4.00 though. yeah. You don't need different heads for that.

[@davidleathersjr1486]

I can only imagine the hp on 85% instead of 66% and a more aggressive cam. Im thinking it has the potential of 700 MAX

[@corystansbury]

Do you guys retain any limited phasing on your LT cams or are they entirely locked out?

[@RaceProvenMotorsports]

Locked. There is zero reason to do otherwise

[@arbiter1]

Old proverb, there is no replacement for displacement.

[@davidleathersjr1486]

I was also told there are issues with sleeves messing up by another shop is that true or is that mostly when it comes to higher horsepower?

[@RaceProvenMotorsports]

Never had a single issue

[@CPAJayhawk]

That’s sick

[@dogsubx2]

The look when he asks where it's leaking from. LOL.....

[@scottmassey5141]

Almost 600 rwt is legit.

[@WildEngineering]

648 on e

[@jtpadventures7189]

There’s 3 ways to make power, cubic inches, rpm, and boost. They all basically do the same thing.

[@1lepandaboyy766]

Damn

[@bigfootgarage2201]

I wonder why when everyone is building stroker motors they go 427 instead of 454,

[@RaceProvenMotorsports]

454 is a 4.125 stroke. 427 is a 4 inch stroke. No need for a 454. The engine and ratios etc inside don’t work as good

[@secretsquirrel572]

How I know you’re a boomer without telling me you’re a boomer. 😂🤣😂

[@TheSupermonkeymaster]

600hp is really good power on a lt1

[@arbiter1]

at the wheel, at almost 650 at wheel is over 700 at the crank

[@kb9gkc]

That's not an LT1, it's a 427 engine in a C7.

[@RaceProvenMotorsports]

Ummm. You clearly don’t know anything. How isn’t it an LT?

[@robertbull6248]

@@kb9gkcduh it’s a stroker lt1 just because it’s a 427 doesn’t mean it’s a LS.

[@kb9gkc]

@@RaceProvenMotorsports Now I understand, it was an GM LT1 that was machined and re-sleeved. With stock LT1 stroked you get about 415 Cubic inches. I am just getting caught up.

[@coreyruttan872]

Stout AF 🤘🏻💪🏻

[@davidleathersjr1486]

Was this an auto or manual?

[@RaceProvenMotorsports]

Manual

[@МаксимВоронин-ы9ж]

Sounds crazy. Eeeaa

[@c7.sheshter]

Is it worth 427

[@dimmacommunication]

RHS 427 block ?

[@RaceProvenMotorsports]

No. RHS are junk

[@dimmacommunication]

@@RaceProvenMotorsports Wich block is it?

[@RaceProvenMotorsports]

TSP sleeved LT Block