EngineLabs Giveaway 2025 – 1,000+ HP Big Block Chevy
We’ve built a giveaway engine three times before. The first was a 427-cube LS engine powered by the winner’s choice of Vortech superchargers. The engine was rated at 1,500 horsepower with the Vortech V-30 94mm supercharger, or 1,300 horsepower with the V-7 YSi-B, which is what the winner ultimately chose. The next year, we put together a twin-turbocharged 1,000-horsepower Ford Godzilla engine. The third engine was a 426-cube Gen-III HEMI engine with a 3.8-liter Whipple supercharger that made well over 1,200 horsepower on the engine dyno.
This year, we’re doing something different with the giveaway engine. All three previous engines have been small-blocks. All three engines have been forced induction. This time, we’re going with the total opposite — a naturally-aspirated big-block Chevy engine. This year, we’re shooting for 632 cubic inches and well over 1,000 horsepower, while still being streetable on pump gas.
In order to accomplish this, we’re turning to one of our longtime friends in the industry, Nick Bacalis, who, by an odd turn of fate was the one who machined LS5.0. Bacalis now owns Bullet Racing Engines, and he’s no stranger to high-horsepower racing engine building. When we pitched him this year’s idea, his answer was simple. “Easy.”
We’ll be using some new and, frankly, incredible parts in this engine build, like the brand-new JLine Performance cast iron engine block, and Edelbrock’s new DR-17 cylinder heads being worked over by the legendary Pat Musi. We’ll be diving deeper into the parts being used in future articles on EngineLabs.com, and, like in previous years, we’ll be building the engine in our booth, live on the PRI Show floor. Immediately after the PRI Show, we’ll be heading up to the University of Northwestern Ohio to dyno test the engine and prove the engine’s power.
This year’s EngineLabs Giveaway contest will open on December 1, 2025 and run through April 2, 2026, and like all of the previous EngineLabs Giveaways, will be totally free to enter. If you happen to be at the PRI Show, you can watch this engine being assembled at the Power Automotive Media booth (#1105) and enter to win from your smartphone as well as right here on EngineLabsGiveaway.com. In addition to the grand prize of the engine, we’re changing it up this year, offering nine additional giveaway items for nine more entrants from Summit Racing:
- 52” Rolling Box (SUM-900566)
- Portable Tool Cart Workstation (SUM-900564)
- 3-Ton Low-Profile Jack (SUM-917078)
- Toolbox Creeper (SUM-918027)
- (3) Summit $75 Gift Certificates
- (2) Summit $25 Gift Certificates
The 2026 EngineLabs’ Engine Giveaway is presented by Summit Racing and made possible thanks to partnerships with Bullet Racing Engines, University of Northwestern Ohio, Automotive Racing Products, ATI Performance Parts, Bendpak, Cam Motion, Cometic Gaskets, Edelbrock, ETS Racing Fuels, Ferrea Racing Components, Holley, Jesel, JLine Performance, King Bearings, Klotz, Lemons Headers, Manton, Melling, Moroso, Powermaster, RaceTec Pistons, Total Seal, United Engine & Machine, Williams Performance Products, and Wilson Manifolds.
Engine Build Specifications
| Block | JLine Performance iron tall-deck raised-cam block |
| Crank | SCAT forged lightweight 4.750-inch stroke |
| Rods | SCAT forged H-beam rods with ARP L19 bolts |
| Pistons | RaceTec gas-ported forged 4.600 inch |
| Piston Rings | Total Seal 0.9mm/0.9mm/3.0mm |
| Bearings | King pMaxKote rod and main bearings |
| Oil Pan | Moroso fabricated aluminum 7-quart |
| Oil Pump | Melling Select billet oil pump |
| Timing Set | Jesel Belt Drive |
| Fasteners | ARP |
| Cylinder Heads | Edelbrock DR-17 w/ Musi CNC porting |
| Valves | Ferrea Hollow Titanium intake, Inconel exhaust |
| Valve Springs | COMP Elite Race dual valve springs |
| Lifters | Johnson .903″ hydraulic roller |
| Pushrods | Manton tapered 7/16 to 3/8 |
| Camshaft | Cam Motion custom hydraulic roller |
| Rocker Arms | Jesel Pro Series aluminum shaft rockers |
| Intake Manifold | Edelbrock Super Victor II |
| Porting | Wilson Manifolds intake porting, port matching, and EFI conversion |
| EFI System | Holley Dominator |
| Throttle Body | Holley EFI billet 2,000cfm 4500-flange |
| Injectors | Holley 83 lb/hr |
| Headers | Lemons Headers 2-3/8-inch coated race headers |
| Gaskets | Cometic MLS |
| Starter | Powermaster Ultra Torque mini |
| Alternator | Powermaster HPR small frame 180-amp |
| Ignition | Holley Smart Coils ignition kit |
| Accessory Drive | Holley mid-mount system, black |
| Fuel | ETS Racing Fuels unleaded 94 octane |