DZ PERFORMANCE 496
Performance Engines designed for your
classic car
hot rod
street-strip
My name is Dominick Zvacek – please call me Nick!
I’m a two-time Drag Week class champion 2007 & 2022, Big Sky Race week, big block N.A. Champion 2026, taking my people/YouTube along on Drag Week & Car cruises.
I design, build, and deliver dyno-tested, street/strip performance engines.
Including engine Dyno testing, tuning, drag racing, parts testing, HP verification through Dyno testing & race events. I hate to admit how many decades I’ve been doing this, but it’s a passion for me!
I have in stock:
- 350 to 406 sbc;
- 396 to 496 bbc;
- 375 to 750 HP
Dyno tested, designed for your high performance application muscle car, street strip, truck.
Prices range from $6,500 to $13,500. One year warranty (with no power adders).
TEXT NICK at 816-213-7204. I can usually get you a price the same day.
If you’d like my help, the information I need is:
- Your basic use and purpose for the vehicle,
- Its weight,
- Transmission and rear axle gear ratio,
- As well as your desired cubic inch and HP…
Then I can get you a quote on an engine designed for your application, guaranteed for 1 year.
You can see a lot of previous builds, dyno testing, and various other adventures on my DZ Performance YouTube Channel where many, many friends have subscribed.
Have you had goosebumps yet this week? [ Sound up ]
Why DZ PERFORMANCE?
Responsive
Service
Most of the time, I can get you a price on a custom motor for your application by the next day. The best way to contact me is to send me a text informing me of what you’re looking for. And I will call you back as soon as possible – 1+816-213-7204.
More than 35 Years' Experience equals results you can feel
My goal is to design a motor package that does not require rear gears or transmission changes, but one that performs the best with the pieces you have, and the way you like to drive.
- HEI distributor included with each motor
- Lift plate engine cradle included
- Spark plugs, spark plug wires now included!
- Carburetor and jetting recommendation will be given; carburetor NOT included, however.
But if you’re going for something different, I can advise you as to what to do behind the motor.
Big Blocks
"454 Bad Mother Trucker BBC"
427 up to 470ci BBC
Heads GM.#781 or #049 or Brodex R.R.
550 up to 630 hp. / 550 up to 620 torque.
Compression ratio 9.5 up to 11.2 to 1
Fuel 93 octane
Cams 239/251 up to 242/248 @.050
Intake Edl rpm., air gap or Vic jr.
Hp. peak approximately 6000 rpm
Right here it is !!! My favorite motor of all time for the money. This combination is wicked. l've installed many of these through the years. Put it in an early 1970's, Chevelle, with a 4sp and 3.73 gears! The driving experience is unbelievable. You will not want to get out of the driver's seat! 4sp or 5sp recommended, or 2500 stall on automatics.
Rear gears 3.55 up to 4.11
Vehicle weight up to 3900lbs
Price range $8950 up to $10,750
"489 Torque Diablo BBC"
454 to 489ci BBC
Heads GM peanut port
475up to 530hp/ 530 up to 650 torque
Compression ratio 8.6 up to 9.5. to 1
Fuel 87 up to 91 octane
Cams 220/230 up to 232/244@.050
Intakes Brodex o. port, or Edl. performer.
Horsepower peak 5600rpm or lower.
With its peanut. port heads medium rise intake it has no need for high stall converter or low gears. Stock converter 3.08 up to 3.55 to 1 rear gears, perfect even in heavy vehicles and trucks. Can be designed for towing. This motor is used many times in heavier muscle cars. But works great for a square body 4×4 long bed. Looking to lay down some rubber.
Vehicle weight? It don't care whatever!
Starting at $7800 up to $9800
"496 Thunder"
470 up to 498ci BBC
Heads GM. #990 or afr /Brodex. Rec.
Port 640 up to 730hp / 600 up to 670 tq
Compression ratio 9.5 up to 11.2 to 1
Fuel 93 octane
Cam. 243/250 @ .050
Intake victor junior rectangle port
Killer combination that can run low 10s up to high 9 second et's at the track. and cruise all night. But remember, it takes upgraded fuel system, good quality transmission rear axle to hang on to this beast. (I have one of these in my personal Camaro. It'll run low 10s on a hot July day and then drive home 200 miles.) HP peak of approximately 6100 rpms.
Transmission 4sp preferred or 3200 stall converter automatic.
Rear axle gears 3.73 up to 4.56 to 1
Price $9,000 up to $11,950
SMALL Blocks
"350 Dominator SBC"
350 up to 406ci SBC
Heads gm cast iron or Brodix.I k's
375 up to 450hp / 400 up to 530tq
Compression ratio 9.2 up to 10.9 to 1
Fuel 87 up to 93 octane
Cam 220/230 up to 230/236 @.050
Intake dual plane.
I've built many small blocks along these lines, and seen friends run mid 12 second E.T's. Using 2000 stall converter, 3.90 rear gear, and really enjoy motors like this.
$6900 up to $8900
"400 Peacemaker SBC"
383 up to 406. SBC
Heads GM cast iron or afr or Brodix Ik's
495 up to 560hp /490 up to 530 torque
Compression ratio 9.5 up to 10.9 to 1
Fuel 93 octane
Cam 235/247@.050
Edl rpm or vic junior or team g.
This package is basically my 500 horsepower small block go-to recipe. Decent heads, 383ci, 10.5 to 1 c.r. My custom cam. Will ring the bell for 500 horse at almost any dyno In the country. I currently have friends that have these motors that run ETs of low 11s any day.
$7900 up to $9200
