Generation IV Internal Engine - Introducing the Ultra Track Attack LS7 - 717hp for the hardcore track enthusiast

This is a new engine package we put together for the hardcore track enthusiast. The beauty of it is that it runs on $2.30/gallon, 105 octane pump gas E85. Over 700hp from 5900rpm and up, over 600 ft-lbs everywhere. Specs are below

http://www.katechengines.com/street_performance/images/engine_packages/Ultra%20Track%20Attack%20LS7_low%20res.jpg

Bore: 4.205
Stroke: 4.250
Displacement: 472ci
High hp version: 717hp @ 6500rpm, 632 ft-lbs @ 5500rpm
High tq version: 680hp @ 6100rpm, 650 ft-lbs @ 4600rpm
Compression ratio: 13:1
Fuel: E85
Redline: 7000rpm
Weight: 380lbs as pictured
Block: Dart/Katech billet, linerless with nikasil coated bores, billet steel main caps
Crank: Callies forged steel
Rods: Callies forged steel
Pistons: Katech forged aluminum
Heads: LS7
Valves: LS7
Intake: FAST 102mm w/NW 102mm TB
Camshaft: 2 choices available
Lifters: GM racing, hydraulic roller
Oiling system: ARE 3 Stage external scavenge pump, Katech internal pressure pump

Dyno graphs of the 2 camshaft choices
http://www.katechengines.com/street_performance/images/engine_packages/C2-8724%20&%20C2-8745.jpg

Interesting spec with the nicasil bores.
What durability testing has been done on this?
There have been problems with nicasil bores on Jaguars and BMW engines before and Jag went back to steel liners.
Im guessing this is a track engine built for performance and not a street engine built for durability? Or am I guessing wrong?

And the price is?

Interesting spec with the nicasil bores.
What durability testing has been done on this?
There have been problems with nicasil bores on Jaguars and BMW engines before and Jag went back to steel liners.
Im guessing this is a track engine built for performance and not a street engine built for durability? Or am I guessing wrong?

We've ran 30 hour durability on the dyno and won Le Mans 6 times with similar bores. This block has been running for 2 years in C6RSs including track testing at Spring Mountain.

Right, it's built for track use, not street.

And the price is?

Enough to start a war on this forum.

I guess $30,000

Enough to start a war on this forum.

:eek:

I really wanna know!!!!

the engine and numbers looks beautiful..

How much do you think C6 ZO6 will dyno with right headers and tune??

I guess $30,000

in parts

edit: more than that for parts actually.

That's some high dollar shit right there...very cool stuff. I wish I had the cash flow to roll something like that under my car. Guess I'll just have to settle for your valve covers and belt tensioner instead :(

ALOT of $$$ FOR ONLY 700HP!! Sure is pretty though :)

And the price is?

if you have to ask, then you can't afford:)

ALOT of $$$ FOR ONLY 700HP!! Sure is pretty though :)

Now that I think about it, we could have just bought a stock LS3 and slapped a Procharger on it. You're right.

Maybe we could do that for the C6.R too. Those cost $130k each and have only 580hp. I'll bring it up in the next staff meeting. Thanks.

Now that I think about it, we could have just bought a stock LS3 and slapped a Procharger on it. You're right.

Maybe we could do that for the C6.R too. Those cost $130k each and have only 580hp. I'll bring it up in the next staff meeting. Thanks.

If you guys decide to make the change to Prochargers with the Corvette racing program, I'll gladly buy one of the used engines you take out :jest:

If you guys decide to make the change to Prochargers with the Corvette racing program, I'll gladly buy one of the used engines you take out :jest:

Ok, I'll set one aside for you.

Ok, I'll set one aside for you.

Forgive me if I don't hold my breath...

Let the internet haters hate. You guys make top quality stuff - you've proven that to me with the belt tensioner and the valve covers and coil relocation kit...I can only imagine what an entire engine would be like.

Now that I think about it, we could have just bought a stock LS3 and slapped a Procharger on it. You're right.

Maybe we could do that for the C6.R too. Those cost $130k each and have only 580hp. I'll bring it up in the next staff meeting. Thanks.


LOL.

Wow only 380#, didn't realize a complete was so light.

Very nice engine!!

ALOT of $$$ FOR ONLY 700HP!! Sure is pretty though :)

Now that I think about it, we could have just bought a stock LS3 and slapped a Procharger on it. You're right.

Maybe we could do that for the C6.R too. Those cost $130k each and have only 580hp. I'll bring it up in the next staff meeting. Thanks.

:rotflmao:

I guess $41,000

Just so we are all clear this is wheel power or crank?

Wasnt hating in any way just said it was alot of money.

Im sure hoping its wheel power. If so its even more badass, but still alot of money :)

It's from an engine dyno, not whp.

You have to understand who Katech builds engines for. These things have to last hours of continuous torture at high RPMs.

So 472ci, 13:1 compression, $30k and only 717 at the crank? I would expect over 800 for the investment. I understand technology isn't cheap which is what this motor is chocked full of. Nikasil has been use fir quite some time in jetskis and is awesome and $$$.

Ready to come play with your HPP 500ci Vette with my gimpy 408 T/A this spring :-)

So 472ci, 13:1 compression, $30k and only 717 at the crank? I would expect over 800 for the investment. I understand technology isn't cheap which is what this motor is chocked full of. Nikasil has been use fir quite some time in jetskis and is awesome and $$$.

Ready to come play with your HPP 500ci Vette with my gimpy 408 T/A this spring :-)

Money doesn't change the laws of physics. Hydraulic roller, stock head castings, stock valve size, and conventional intake manifold, these are the limitations.

So 472ci, 13:1 compression, $30k and only 717 at the crank? I would expect over 800 for the investment. I understand technology isn't cheap which is what this motor is chocked full of. Nikasil has been use fir quite some time in jetskis and is awesome and $$$.

Ready to come play with your HPP 500ci Vette with my gimpy 408 T/A this spring :-)

You know where to find me...and I'll be in the Ford.

Do the math on the parts. :D

Top-notch and purpose-built by the Best. How many engine builders have won Lemans multiple times...much less with an LS based engine.

Katech is the Gold Standard.

You know where to find me...and I'll be in the Ford.

Not skeered :) 2nd stage will def be needed to keep up though :)

Very nice.

Is Dart doing 6 head bolt per cyl Billet blocks yet?
As your targeting the racer/weekend warrier why not go solid cam and employ better heads ect.
If I were outlaying this much, proportionly it wouldn't cost a lot more money?

I guess you make to order also?

Just wondering. Cheers.

thats impressive jason. question though, why, on most "sbc" engines including the ls platform, do they have that strange dip in torque in the middle of the rpm range?



what some of you complaining seem to not realize, is that your piddly stock LS motor would explode with about 1/4 of the abuse Katech's engines are built to take. nicasil = not cheap, the machining and blueprinting time = not cheap, parts = not cheap. if you think you can build a multi-championship winning LeManns engine and then transfer that technology to the "civilian" market, no one is stopping you.

My piddly stock Ls motor made 750 with 60 less cubes and im willing to bet it will withstand quite a bit of abuse.

katech is a very well known, im sure they will stand behind thier engines with a nice WARRANTY for 40k....... a reputable shop installs them or they install them and set the tune

There is a big difference between a drag motor and a road race motor. Consider that in a weekend of road racing, you're logging more engine rpms than a drag motor sees in an entire season, I can understand the difference in build materials and cost.

If I wanted a motor that would last an entire season of road racing, this would be the motor to get. Quite impressive.

so a drag race version of this would cost what? ballpark?

My piddly stock Ls motor made 750 with 60 less cubes and im willing to bet it will withstand quite a bit of abuse.

is that with Hydraulic roller, stock head castings, stock valve size, and conventional intake manifold, these are the limitations?? I would think not, if they are I'm sure you'ld beat them at Lemans :D

My piddly stock Ls motor made 750 with 60 less cubes and im willing to bet it will withstand quite a bit of abuse.

OK it's a bet. Lets see how long your piddly stock LS engine holds up.

I would be willing to bet it's a dyno queen that has never had a REAL test of the durability.

You know, like a few laps.

Prove me wrong....:eyes:

Got to love the internet... sheesh


Robin

thats impressive jason. question though, why, on most "sbc" engines including the ls platform, do they have that strange dip in torque in the middle of the rpm range?


It's related to intake/exhaust runner/primary length tuning.

OK it's a bet. Lets see how long your piddly stock LS engine holds up.

I would be willing to bet it's a dyno queen that has never had a REAL test of the durability.

You know, like a few laps.

Prove me wrong....:eyes:

Got to love the internet... sheesh


Robin

I'll host the dyno shootout. How about 30 hours of durability? (if necessary)

Side note - we durability tested our forged pistons for 422 hours of WOT.

I'll host the dyno shootout. How about 30 hours of durability? (if necessary)

Side note - we durability tested our forged pistons for 422 hours of WOT.

Pfffft...I drive 422 hours each way to work, uphill, WOT. ;)

It's related to intake/exhaust runner/primary length tuning.

<snip>

oh, ok. i guess theres a "resonance" of sorts that the runners/primaries cause

This would be a monster on a road racing course with reliability to boot. It would be scary to come out of a corner and pull the entire way into the next.

I agree there is a vast difference btween drag racing and roadracing engines in the terms of sustained durability. I built my car to run the TTU class with NASA (which is 1/100th the hours a Katech motor sees) and it still cost me well over $20K but I insisted on installing forged internals, Katech mains, Katech wiring adapters, Katech tensioner and had the rotating assembly balanced and heads flow tested by LBP out of Cibolo, TX. The motor has held for two seasons and counting. Was it worth it; hell yeah. If I had the money this motor would definately be in my car for the next season. Now if only I could find brakes as well engineered.

Now that I think about it, we could have just bought a stock LS3 and slapped a Procharger on it. You're right.

Maybe we could do that for the C6.R too. Those cost $130k each and have only 580hp. I'll bring it up in the next staff meeting. Thanks.

:rotflmao::rotflmao::rotflmao::rotflmao::rotflmao: :rotflmao::rotflmao: